Terms from Sir Magdi (Habib) Yacoub to St Joseph
- Sir Magdi (Habib) Yacoub Biography (1935– )
- Sir Malcolm (Henry) Arnold Biography (1921–2006)
- Sir Malcolm (Leslie) Rifkind Biography (1946– )
- Sir Malcolm (Stanley) Bradbury Biography (1932–2000)
- Sir Malcolm Campbell Biography (1885–1948)
- Sir Marc Isambard Brunel Biography (1769–1849)
- Sir Marcus Lawrence Loane Biography (1911– )
- Sir Mark Oliphant Biography (1901–2000) (in full Marcus Laurence Elwin Oliphant)
- Sir Martin Frobisher Biography (c.1535–94)
- Sir Martin Ryle Biography (1918–84)
- Sir Matt(hew) Busby Biography (1909–94)
- Sir Matthew (Clive) Pinsent Biography (1970– )
- Sir Matthew Arnold Bracy Smith Biography (1879–1959)
- Sir Matthew Hale Biography (1609–76)
- Sir Maurice (Vincent) Wilkes Biography (1913– )
- Sir Max (Edgar Lucien) Mallowan Biography (1904–78)
- Sir Max Macdonald Hastings Biography (1945– )
- Sir Max Pemberton Biography (1863–1950)
- Sir Menzies Campbell Biography (1941– ) (known as Ming Campbell)
- Sir Michael (Elias) Balcon Biography (1896–1977)
- Sir Michael (Francis) Atiyah Biography (1929– )
- Sir Michael (John) Gambon Biography (1940– )
- Sir Michael (Kemp) Tippett Biography (1905–98)
- Sir Michael (Murray) Hordern Biography (1911–95)
- Sir Michael (Owen) Edwardes Biography (1930– )
- Sir Michael (Scudamore) Redgrave Biography (1908–85)
- Sir Michael Caine Biography (1933– ) (properly Sir Maurice Micklewhite)
- Sir Michael Ernest Sadler Biography (1861–1943)
- Sir Misha Black Biography (1910–77)
- Sir Mohammed Iqbal Biography (1876–1938)
- Sir Monier Monier-Williams Biography (1819–99) (originally Monier Williams)
- Sir Moses (Haim) Montefiore Biography (1784–1885)
- Sir Muirhead Bone Biography (1876–1953)
- Sir Nevill F(rancis) Mott Biography (1905–96)
- Sir Neville Marriner Biography (1924– )
- Sir Nicholas Bacon Biography (1510–79)
- Sir Nicholas Throckmorton Biography (1515–71)
- Sir Nigel (Barnard) Hawthorne Biography (1929–2001)
- Sir Nikolaus (Bernhard Leon) Pevsner Biography (1902–83)
- Sir Ninian (Martin) Stephen Biography (1923– )
- Sir Noel (Pierce) Coward Biography (1899–1973)
- Sir Norman (Everard) Brookes Biography (1877–1968)
- Sir Norman Angell Biography (1872–1967) (originally Ralph Norman Angell-Lane)
- Sir Norman Hartnell Biography (1901–78)
- Sir Norman McAlister Gregg Biography (1892–1966)
- Sir Norman Wisdom Biography (1915– )
- Sir Oliver (William Hargreaves) Leese Biography (1894–1978)
- Sir Oliver Joseph Lodge Biography (1851–1940)
- Sir Osbert Lancaster Biography (1908–86)
- Sir Oswald (Ernald) Mosley Biography (1896–1980)
- Sir Ove (Nyquist) Arup Biography (1895–1988)
- Sir Owen Willans Richardson Biography (1879–1959)
- Sir P(elham) G(renville) Wodehouse Biography (1881–1975)
- Sir Patrick (Alfred Caldwell) Moore Biography (1923– )
- Sir Patrick (Michael) Leigh Fermor Biography (1915– )
- Sir Patrick Geddes Biography (1854–1932)
- Sir Patrick Gordon Taylor Biography (1896–1966)
- Sir Patrick Manson Biography (1844–1922) (nickname Mosquito Manson)
- Sir Paul Alfred Reeves Biography (1932– )
- Sir Paul M Nurse Biography (1949– )
- Sir Percival Sharp Biography (1867–1953)
- Sir Percy Moreton Scott Biography (1853–1924)
- Sir Peter (Alexander) Ustinov Biography (1921–2004)
- Sir Peter (Brian) Medawar Biography (1915–87)
- Sir Peter (Chalmers) Mitchell Biography (1864–1945)
- Sir Peter (Courtney) Quennell Biography (1905–93)
- Sir Peter (Frederick) Strawson Biography (1919–2006)
- Sir Peter (Henry) Buck Biography (1879–1951) (originally Te Rangi Hiroa)
- Sir Peter (Levin) Shaffer Biography (1926– )
- Sir Peter (Markham) Scott Biography (1909–89)
- Sir Peter (Neville Luard) Pears Biography (1910–86)
- Sir Peter (Reginald Frederick) Hall Biography (1930– )
- Sir Peter Blake Biography (1932– )
- Sir Peter Lely Biography (1618–80) (originally Pieter van der Faes)
- Sir Peter Mansfield Biography (1933– )
- Sir Peter Maxwell Davies Biography (1934– )
- Sir Philip Francis Biography (1740–1818)
- Sir Philip Sidney Biography (1554–86)
- Sir Philip Vian Biography (1894–1968)
- Sir R(onald) A(ylmer) Fisher Biography (1890–1962)
- Sir Ralph (David) Richardson Biography (1902–83)
- Sir Ralph Abercromby Biography (1734–1801)
- Sir Ralph Freeman Biography (1880–1950)
- Sir Ranulph (Twisleton-Wykeham-) Fiennes Biography (1944– )
- Sir Raphael West Cilento Biography (1893–1985)
- Sir Raymond (Bill) Hoffenberg Biography (1923– )
- Sir Raymond (William) Firth Biography (1901–2002)
- Sir Redvers (Henry) Buller Biography (1839–1908)
- Sir Reginald (Myles) Ansett Biography (1909–81)
- Sir Rex Harrison Biography (1908–90) (originally Reginald Carey Harrison)
- Sir Richard (Charles Hastings) Eyre Biography (1943– )
- Sir Richard (Charles Nicholas) Branson Biography (1950– )
- Sir Richard (Francis) Burton Biography (1821–90)
- Sir Richard (James Fildes) Boyer Biography (1891–1961)
- Sir Richard (John) Hadlee Biography (1951– )
- Sir Richard (Thomas Dyke) Acland Biography (1906–90)
- Sir Richard Arkwright Biography (1732–92)
- Sir Richard Church Biography (1785–1873)
- Sir Richard Grenville Biography (c.1542–91)
- Sir Richard Hoare Biography (1648–1718)
- Sir Richard John Griffith Biography (1784–1878)
- Sir Richard Rodney Bennett Biography (1936– )
- Sir Richard Steele Biography (1672–1729)
- Sir Richard Wallace Biography (1818–90)
- Sir Ridley Scott Biography (1937– )
- Sir Robert (Abbot) Hadfield Biography (1858–1940)
- Sir Robert (David) Muldoon Biography (1921–92)
- Sir Robert (John Le Mesurier) McClure Biography (1807–73)
- Sir Robert (Laird) Borden Biography (1854–1937)
- Sir Robert (Murray) Helpmann Biography (1909–86)
- Sir Robert Alexander Watson-Watt Biography (1892–1973)
- Sir Robert Ayton Biography (1570–1638)
- Sir Robert Bruce Cotton Biography (1571–1631)
- Sir Robert Gordon Menzies Biography (1894–1978)
- Sir Robert Hermann Schomburgk Biography (1804–65)
- Sir Robert McCredie May Biography (1936– )
- Sir Robert Peel Biography (1788–1850)
- Sir Robert Richard Torrens Biography (1814–84)
- Sir Robert Robinson Biography (1886–1975)
- Sir Robert Smirke Biography (1781–1867)
- Sir Robin Day Biography (1923–2000)
- Sir Robin Philipson Biography (1916–92) (popular name of Sir Robert James Philipson)
- Sir Roderick Impey Murchison Biography (1792–1871)
- Sir Roger (George) Moore Biography (1927– )
- Sir Roger (Gilbert) Bannister Biography (1929– )
- Sir Roger Henry Hollis Biography (1905–73)
- Sir Roger Newdigate Biography (1719–1806)
- Sir Roger Penrose Biography (1931– )
- Sir Roland (Algernon) Penrose Biography (1900–84)
- Sir Ronald (Alfred) Brierley Biography (1937– )
- Sir Ronald Ross Biography (1857–1932)
- Sir Ross Macpherson Smith Biography (1892–1922)
- Sir Rowland Harry Biffen Biography (1874–1949)
- Sir Rowland Hill Biography (1795–1879)
- Sir Roy (Colin) Strong Biography (1935– )
- Sir Roy Welensky Biography (1907–91)
- Sir Rudolf Bing Biography (1902–97)
- Sir Rudolph (Ernest) Peierls Biography (1907–95)
- Sir Sacheverell Sitwell Biography (1897–1988)
- Sir Samuel (White) Baker Biography (1821–93)
- Sir Samuel Argall Biography (fl.1609–24)
- Sir Samuel Bentham Biography (1757–1831)
- Sir Samuel Cunard Biography (1787–1865)
- Sir Samuel Romilly Biography (1757–1818)
- Sir Samuel Walker Griffith Biography (1845–1920)
- Sir Sandford Fleming Biography (1827–1915)
- Sir Sarvepalli Radhakrishnan Biography (1888–1975)
- Sir Sean Connery Biography (1930– ) (originally Thomas Connery)
- Sir Seretse Khama Biography (1921–80)
- Sir Shane Leslie Biography (1885–1971) (originally John Randolph Leslie)
- Sir Shridath Surrendranath Ramphal Biography (1928– ) (known as Sonny Ramphal)
- Sir Sidney (Robert) Nolan Biography (1917–92)
- Sir Sidney George Holland Biography (1893–1961)
- Sir Sidney Kidman Biography (1857–1935)
- Sir Sigmund Sternberg Biography (1921– )
- Sir Simon (Denis) Rattle Biography (1955– )
- Sir Squire Bancroft Biography (1841–1926)
- Sir Stanley George Hooker Biography (1907–84)
- Sir Stanley Matthews Biography (1915–2000)
- Sir Stanley Spencer Biography (1891–1959)
- Sir Stanley Unwin Biography (1884–1968)
- Sir Stephen (Harold) Spender Biography (1909–95)
- Sir Stephen Henry Roberts Biography (1901–71)
- Sir Steve(n Geoffrey) Redgrave Biography (1962– )
- Sir Stirling Moss Biography (1929– )
- Sir Surendranath Banerjea Biography (1848–1925)
- Sir Sydney Alfred Smith Biography (1883–1969)
- Sir Sydney Camm Biography (1893–1966)
- Sir Terence (Mervyn) Rattigan Biography (1911–77)
- Sir Terence (Orby) Conran Biography (1931– )
- Sir Terry Frost Biography (1915–2003) (popular name of Sir Terence Ernest Manitou Frost)
- Sir Thomas (Clifford) Allbutt Biography (1836–1925)
- Sir Thomas (Francis) Wade Biography (1818–95)
- Sir Thomas (Masterman) Hardy Biography (1769–1839)
- Sir Thomas (Octave Murdoch) Sopwith Biography (1888–1989)
- Sir Thomas Albert Blamey Biography (1884–1951)
- Sir Thomas Beecham Biography (1879–1961)
- Sir Thomas Bodley Biography (1545–1613)
- Sir Thomas Browne Biography (1605–82)
- Sir Thomas Cavendish Biography (c.1555–c.1592)
- Sir Thomas Edward Scrutton Biography (1856–1934)
- Sir Thomas Elder Biography (1818–97)
- Sir Thomas Elyot Biography (c.1490–1546) (also spelled Eliot)
- Sir Thomas Graham Jackson Biography (1835–1924)
- Sir Thomas Gresham Biography (1519–79)
- Sir Thomas Johnstone Lipton Biography (1850–1931)
- Sir Thomas Lawrence Biography (1769–1830)
- Sir Thomas Lewis Biography (1881–1945)
- Sir Thomas Livingstone Mitchell Biography (1792–1855)
- Sir Thomas Lucy Biography (1532–1600)
- Sir Thomas Makdougall Brisbane Biography (1773–1860)
- Sir Thomas Malory Biography (?–1471)
- Sir Thomas More Biography (1478–1535) (also St Thomas More)
- Sir Thomas North Biography (1523–?1601)
- Sir Thomas Playford Biography (1896–1981)
- Sir Thomas Pride Biography (?–1658)
- Sir Thomas Randolph Biography (?–1332)
- Sir Thomas Urquhart Biography (c.1611–60)
- Sir Thomas Wyatt Biography (?1520–54) (known as the Younger)
- Sir Thomas Wyatt Biography (1503–42) (known as the Elder)
- Sir Titus Salt Biography (1803–76)
- Sir Tom Jones Biography (1940– ) (originally Thomas Jones Woodward)
- Sir Tom Stoppard Biography (1937– ) (originally Tomas Straussler)
- Sir Trafford Leigh-Mallory Biography (1892–1944)
- Sir Trevor (Robert) Nunn Biography (1940– )
- Sir Trevor McDonald Biography (1939– )
- Sir V(ictor) S(awdon) Pritchett Biography (1900–97)
- Sir V(idiadhar) S(urajprasad) Naipaul Biography (1932– )
- Sir Victor (Alexander Haden) Horsely Biography (1857–1916)
- Sir Victor Gollancz Biography (1893–1967)
- Sir Vincent (Brian) Wigglesworth Biography (1899–1994)
- Sir Vivian Ernest Fuchs Biography (1908–99)
- Sir W(illiam) Arthur Lewis Biography (1915–91)
- Sir W(illiam) S(chwenck) Gilbert Biography (1836–1911)
- Sir Wallace Edward Rowling Biography (1927–95) (known as Bill Rowling)
- Sir Wally Herbert Biography (1934– ) (popular name of Sir Walter William Herbert)
- Sir Walter (Alexander) Raleigh Biography (1861–1922)
- Sir Walter Besant Biography (1836–1901)
- Sir Walter Gilbey Biography (1831–1914)
- Sir Walter Nash Biography (1882–1968)
- Sir Walter Raleigh Biography (1552–1618) (also spelled Ralegh)
- Sir Walter Scott Biography (1771–1832)
- Sir Wilfred (Thomason) Grenfell Biography (1865–1940)
- Sir Wilfred Patrick Thesiger Biography (1910–2003)
- Sir Wilfrid (Edward Le Gros) Clark Biography (1895–1971)
- Sir Wilfrid Laurier Biography (1841–1919)
- Sir Will(iam) Spens Biography (1882–1962)
- Sir William (Chandler) Roberts-Austen Biography (1843–1902)
- Sir William (de Wiveleslie) Abney Biography (1844–1920)
- Sir William (George Granville Venables Vernon) Harcourt Biography (1827–1904)
- Sir William (Gerald) Golding Biography (1911–93)
- Sir William (Godfrey Fothergill) Jackson Biography (1917–99)
- Sir William (Henry) Bragg Biography (1862–1942)
- Sir William (Patrick) Deane Biography (1931– )
- Sir William (Robert Wills) Wilde Biography (1815–76)
- Sir William (Turner) Walton Biography (1902–83)
- Sir William Alexander Craigie Biography (1867–1957)
- Sir William Allan Biography (1782–1850)
- Sir William Arrol Biography (1839–1913)
- Sir William Arthur Stanier Biography (1876–1965)
- Sir William Augustus Tilden Biography (1842–1926)
- Sir William Berkeley Biography (1606–77)
- Sir William Blackstone Biography (1723–80)
- Sir William Boog Leishman Biography (1865–1926)
- Sir William Bowman Biography (1816–92)
- Sir William Burrell Biography (1861–1958)
- Sir William Chambers Biography (1726–96)
- Sir William Charles Angliss Biography (1865–1957)
- Sir William Coldstream Biography (1908–87)
- Sir William Congreve Biography (1772–1828)
- Sir William Crookes Biography (1832–1919)
- Sir William Cubitt Biography (1785–1861)
- Sir William Davenant Or D'Avenant Biography (1606–68)
- Sir William Dobell Biography (1899–1970)
- Sir William Edmund Garstin Biography (1849–1925)
- Sir William Edward Parry Biography (1790–1855)
- Sir William Empson Biography (1906–84)
- Sir William Fairbairn Biography (1789–1874)
- Sir William Fettes Biography (1750–1836)
- Sir William Fothergill Cooke Biography (1806–79)
- Sir William George Gillies Biography (1898–1973)
- Sir William George Sheddon Dobbie Biography (1879–1964)
- Sir William Glock Biography (1908–2000)
- Sir William Hamilton Biography (1788–1856)
- Sir William Hamilton Biography (1730–1803)
- Sir William Henry Hadow Biography (1859–1937)
- Sir William Henry Mahoney Christie Biography (1845–1922)
- Sir William Henry Perkin Biography (1838–1907)
- Sir William Henry Preece Biography (1834–1913)
- Sir William Howard Russell Biography (1820–1907)
- Sir William Hudson Biography (1896–1978)
- Sir William Huggins Biography (1824–1910)
- Sir William Jackson Hooker Biography (1785–1865)
- Sir William Jackson Pope Biography (1870–1939)
- Sir William Jenner Biography (1815–98)
- Sir William Johnson Biography (1715–74)
- Sir William Jones Biography (1746–94)
- Sir William MacEwen Biography (1848–1924)
- Sir William Maddock Bayliss Biography (1860–1924)
- Sir William McMahon Biography (1908–88)
- Sir William Newzam Prior Nicholson Biography (1872–1949) (pseudonym W Beggarstaff)
- Sir William Oliphant Hutchison Biography (1889–1970)
- Sir William Pepperrell Biography (1696–1759)
- Sir William Petty Biography (1623–87)
- Sir William Phips Biography (1651–95) (also spelled Phipps)
- Sir William Quiller Orchardson Biography (1832–1910)
- Sir William Ramsay Biography (1852–1916)
- Sir William Robert Grove Biography (1811–96)
- Sir William Robert Robertson Biography (1860–1933)
- Sir William Rothenstein Biography (1872–1945)
- Sir William Rowan Hamilton Biography (1805–65)
- Sir William Russell Flint Biography (1880–1969)
- Sir William Smith Biography (1854–1914)
- Sir William Stephenson Biography (1896–1989) (known as Intrepid)
- Sir William Sterndale Bennett Biography (1816–75)
- Sir William Temple Biography (1628–99)
- Sir William Wallace Biography (c.1270–1305)
- Sir William Waller Biography (c.1598–1688)
- Sir William Watson Biography (1715–87)
- Sir William Withey Gull Biography (1816–90)
- Sir Winston (Leonard Spencer) Churchill Biography (1874–1965)
- Sir Zelman Cowen Biography (1919– )
- Siraj-ud-Daula Biography (c.1732–57) (originally Mirza Muhammad)
- Siren
- Sirens
- Sirimavo (Ratwatte Dias) Bandaranaike Biography (1916–2000) (née Ratwatte)
- Sirius
- Sirocco / Scirocco
- Sirte, Gulf Of (Arabic Khalij Surt)
- Siskin
- Sister Mary Madeleva Biography (1887–1964) (originally Mary Evaline Wolff)
- Sister Parish Biography (1910–94) (popular name of Mrs Henry Parish II)
- Sister Rosetta Tharpe Biography (1915–73) (née Nubin)
- Sistine Chapel
- Sisyphus
- Sitar
- Sitatunga
- Sites Of Special Scientific Interest (SSSIs)
- Sitiveni Rabuka Biography (1948– )
- Sitka
- Sito Pons Biography (1960– )
- Sitting Bull Biography (c.1831–90) (originally Tatanka Iyotake)
- Six, Jan Biography (1618–1700)
- Sixth-form College
- Sixtus IV Biography (1414–84) (originally Francesco della Rovere)
- Sixtus V Biography (1520–90) (originally Felice Peretti)
- Sizewell
- Sjælland
- Ska
- Skagerrak
- Skaldic Poetry ((Old Norse skaldr ‘poet’))
- Skanda
- Skanderbeg Biography (1405–68) (nickname of George Castriota or Kastrioti)
- Skara Brae
- Skate
- Skateboarding
- Skegness
- Skeleton
- Skeleton Coast
- Sketch
- Sketchphone
- Skiathos
- Skiddaw
- Skien
- Skiffle
- Skiing
- Skikda
- Skimmer
- Skin
- Skin Effect
- Skin-diving
- Skink
- Skipjack
- Skipper
- Skiros
- Skittles
- Skopje (or SkopljeTurkish Usküpancient Scupi)
- Skraelings ((Old Norse skraelingr ‘pitiful wretch’))
- Skua
- Skull
- Skull-cap
- Skunk
- Skydiving
- Skye
- Skye Terrier
- Skylab Project
- Skylark
- Skyscraper
- Slander
- Slate
- Slava Polunin Biography (1950– )
- Slave Trade
- Slave-making Ant
- Slavery
- Slavic Or Slavonic Languages
- Slavic Religion
- Slavs
- Sleep
- Sleep Apnoea/apnea
- Sleep-walking Or Somnambulism
- Sleet
- Slide
- Slide Projector
- Sliema
- Sligo (county) (Ir Sligeach)
- Sligo (town)
- Slim Gaillard Biography (1916-91)
- Slime Mould
- Slippery Elm
- Slobodan Milosevic Biography (1941–2006)
- Slogan
- Sloop
- Sloth
- Sloth Bear
- Slough
- Slovak Republic (or Slovakia)
- Slovenes
- Slovenia
- Slow-worm
- Slug (zoology)
- Slupsk (Ger Stolp)
- Smallpox
- Smalltalk
- Smart 1
- Smart Card
- Smart Material
- Smedley D(arlington) Butler Biography (1881–1940)
- Smelt
- Smelting
- Smew
- Smith Ely Jelliffe Biography (1866–1945)
- Smith Thompson Biography (1768–1843)
- Smithfield
- Smithsonian Institution
- Smog
- Smoholla Biography (?1815–1907)
- Smoke Tree
- Smoked Foods
- Smokey Robinson Biography (1940– ) (popular name of William Robinson Jr)
- Smoking
- Smolensk
- Smooth Snake
- Smothers Brothers
- Smut Fungus
- Snail
- Snail Kite
- Snake
- Snake River
- Snake-necked Turtle
- Snakefly
- Snapdragon
- Snapper
- Snapping Turtle
- Snipe
- Snooker
- Snorri Sturluson Biography (1179–1241)
- Snow
- Snow Bunting
- Snow Goose
- Snow Leopard
- Snowboarding
- Snowdon (Welsh Yr Wyddfa)
- Snowdrop
- Snowshoe Hare
- Snowy Baker Biography (1884–1953) (popular name of Reginald Leslie Baker)
- Snowy Mountains Scheme
- Snowy Owl
- Snr Fairbanks, Douglas (Elton) Biography (1883–1939) (originally Douglas Elton Ulman)
- Snr James, Henry Biography (1811–82)
- Snuff
- Soap
- Soapwort
- Soca
- Sochi
- Sociaal-Democratische Arbeiderspartij (SDAP)
- Sociaal-Democratische Bond (SDB)
- Sociaal-Democratische Partij (SDP)
- Social Behaviourism
- Social Chapter
- Social Cognition
- Social Contract Or Social Compact
- Social Credit
- Social Darwinism
- Social Democracy
- Social Democratic Party (SDP)
- Social Engineering
- Social Gospel
- Social History
- Social Mobility
- Social Movement
- Social Psychology
- Social Realism
- Social Science
- Social Security
- Social Security Act (Netherlands)
- Social Stratification
- Social Studies
- Social System
- Social Work
- Socialism
- Socialist Labor Party
- Socialist Realism
- Socialist Revolutionary (SR) Party
- Socialistiese Partij (SP)
- Society Islands (Fr Archipel de la Société)
- Sociobiology
- Sociolinguistics
- Sociology
- Sociometry
- Sockeye
- Socorro
- Socrates Biography (469–399 BC)
- Soda Bread
- Sodium
- Sodom And Gomorrah
- Sofia (Bulgarian SofiyaLat Serdica)
- Sofia Coppola Biography (1971– )
- Soft Systems Methodology
- Soft-shelled Turtle
- Softball
- Software
- Sogne Fjord (Norwegian Sognefjorden)
- Soia Mentschikoff Biography (1915–84)
- Soichiro Honda Biography (1906–91)
- Soil
- Soil Management
- Soil Profile
- Soil Science
- Sojourner Truth Biography (c.1797–1883) (originally Isabella Van Wagener)
- Soka Gakkai ((Jap ‘value-creating society’))
- Sol Bloom Biography (1870–1949)
- Sol Hurok Biography (1888–1974)
- Sol Lewitt Biography (1928– )
- Sol Myron Linowitz Biography (1913–2005)
- Sol Tax Biography (1907–95)
- Sol(omon Tshekisho) Plaatje Biography (1879–1932)
- Solar And Heliospheric Observatory (SOHO) Project
- Solar Cell
- Solar Constant
- Solar Flare
- Solar Neutrino Problem
- Solar Power
- Solar Prominence
- Solar System
- Solar Time
- Solar Wind
- Solder
- Soldier Beetle
- Sole
- Solemn League And Covenant
- Solenodon
- Solenoid
- Solent, The
- Solferino, Battle Of
- Solicitor
- Solicitor General
- Solid
- Solid-state Device
- Solid-state Physics
- Solidarity ((Polish Solidarność).)
- Solidaritätszuschlag
- Solihull
- Soliloquy
- Solingen
- Solipsism
- Solitaire
- Soliton
- Solmization
- Solo
- Solomon (Halbert) Snyder Biography (1938– )
- Solomon (Hebrew Bible) Biography (10th-c BC)
- Solomon (music) Biography (1902–88) (professional name of Solomon Cutner)
- Solomon Islands
- Solomon Lefschetz Biography (1884–1972)
- Solomon R(obert) Guggenheim Biography (1861–1949)
- Solomon Schechter Biography (?1847–1915)
- Solomon Stoddard Biography (1643–1729)
- Solomon's Seal
- Solomon, Psalms Of
- Solon Biography (7th–6th-c BC)
- Solstice
- Solubility
- Solution
- Solutrian
- Solvay Process (or ammonia–soda process)
- Solvent
- Solway Firth
- Somali
- Somalia
- Somatic Gene Therapy
- Somatids
- Somatomedins
- Somatostatin
- Somerset
- Somerville
- Somme, Battle Of The
- Somme, River
- Somnath, Temple Of
- Son Of Man
- Son Of Many Beads Biography (c.1866–1954) (also known as Bidaga and Jose Pino)
- Sonar
- Sonata
- Sonatina
- Sonderbund
- Song
- Song Cycle
- Song Of Solomon, Song Of Songs, Or Canticles
- Song Of The Three Young Men
- Song Or Sung Dynasty (20th-c)
- Song Or Sung Dynasty (960–1279)
- Song Thrush
- Song Ziwen Biography (1894–1971) (also spelled Sung Tsu-wen or Soong Tse-venabbreviated as SoongT V)
- Songbird
- Songhai
- Sonia (Terk) Delaunay Biography (1885–1979) (née Stern)
- Sonia Sanchez Biography (1934– )
- Sonic Boom
- Sonja Henie Biography (1912–69)
- Sonnet ((Ital sonnetto ‘little song’))
- Sonny Boy Williamson Biography (?1899–1965) (originally Aleck Fordalso known as Aleck ‘Rice’ Miller)
- Sonny Liston Biography (?1917–70) (popular name of Charles Liston)
- Sonny Ramadhin Biography (1930– )
- Sonny Rollins Biography (1929– ) (popular name of Theodore Walter Rollins)
- Sonny Terry Biography (1911–86) (originally Sanders Terrel)
- Sonora
- Sons Of Liberty
- Sophia (of Hanover) Biography (1630–1714)
- Sophia (of The Netherlands) Biography (1818–77) (also known as Sofia Frederika of Wurtemberg)
- Sophia Alexeyevna Biography (1657–1704)
- Sophia Hayden Biography (c.1868–1953)
- Sophia Loren Biography (1934– ) (originally Sofia Scicolone)
- Sophia Louisa Jex-Blake Biography (1840–1912)
- Sophia Smith Biography (1796–1870)
- Sophie Charlotte Biography (1668–1705)
- Sophie Gay Biography (1776–1852) (in full Marie-Françoise Sophie Nichault de Lavalette Gay)
- Sophie Grigson Biography (1959– ) (popular name of Hester Sophia Frances Grigson)
- Sophie Tucker Biography (1884–1966) (originally Sonia Abuzanée Kalish)
- Sophists
- Sophocles Biography (c.496–406 BC)
- Sophonisba Biography (?–c.204 BC)
- Sophonisba Preston Breckenridge Biography (1866–1948)
- Sophus (Niels Christen) Claussen Biography (1865–1931)
- Sopot (Ger Zoppot)
- Sopron (Ger Odenburg)
- Soraya Biography (1932–2001 ) (in full Princess Soraya Esfandiari Bakhtiari)
- Sorbic Acid
- Sorghum
- Soria
- Sorley Maclean Biography (1911–96) (Gaelic Somhairle MacGill-Eain)
- Sorrel
- Sorrento
- Sort And Merge
- Sorus
- Sosigenes Of Alexandria Biography (1st-c BC)
- Sosthenes Behn Biography (1882–1957)
- Sotho–Tswana
- Soul (music)
- Soul (religion)
- Sound
- Sound Film
- Sound Intensity Level
- Sound Law
- Sound Recording
- Sound, Battle In The
- Sound, The (Danish Øresund)
- Sour Sop
- Sousaphone
- Souslik (or suslik [suhslik])
- Sousse
- South Africa
- South America
- South Australia
- South Bend
- South Carolina
- South China Sea
- South Dakota
- South Downs Way
- South East Asia Treaty Organization (SEATO)
- South Georgia
- South Glamorgan
- South Haven
- South India, Church Of
- South Island
- South Orkney Islands (Span Orcadas del Sur)
- South Pacific Forum
- South Sandwich Islands
- South Sea Bubble
- South Shetland Islands
- South Shields
- Southampton (Lat ClausentumAnglo-Saxon Hamwih)
- Southend (in full Southend-on-Sea)
- Southern Alps
- Southern Italian Question
- Southernwood
- Southport
- Southwark
- Southwell
- Southwest Africa People's Organization (SWAPO)
- Southwest Indians
- Sovereign
- Sovereignty
- Soviet
- Soviet Space Programme
- Soviet Union (official name Union of Soviet Socialist Republics (USSR)Russ Soyuz Sovyetskikh Sotsialisticheskikh Republik (Cyrillic alphabetCCCP))
- Sow Thistle
- Soweto
- Sowjetische Militäradministration In Deutschland (SMAD)
- Soya Bean
- Soyuz (Russ ‘union’) Spacecraft
- Sozialdemokratische Partei Deutschlands (SPD)
- Sozialisitische Arbeiterpartei Deutschlands (SAP)
- Sozialistengesetz
- Sozialistische Einheitspartei Deutschlands (SED)
- SP Betting
- Spaanse Furie (Eng ‘Spanish Fury’)
- Space Exploration
- Space Law
- Space Mine
- Space Physiology And Medicine
- Space Shuttle
- Space Station
- Spacecraft
- Spacelab
- Space–time
- Spadefoot Toad
- Spadix
- Spaghetti Western
- Spagyrik
- Spain (ancient IberiaLat Hispania)
- Spandrel
- Spaniel
- Spanish Armada
- Spanish Art
- Spanish Bayonet
- Spanish Civil War
- Spanish Fly
- Spanish Literature
- Spanish Main
- Spanish Moss
- Spanish Riding School
- Spanish Succession, War Of The
- Spanish Town
- Spanish–American War
- Spanish–American Wars Of Independence
- Spark Ignition Engine
- Sparrow
- Sparrowhawk
- Sparta (Greece) (Gr Spartí)
- Sparta (Greek History)
- Spartacists
- Spartacus Biography (?–71 BC)
- Spartakiad
- Spartakusaufstand
- Spasm
- Spathe
- Speaker
- Spear Thistle
- Special Branch
- Special Drawing Rights (SDRs)
- Special Education
- Special Effects
- Special Operations Executive (SOE)
- Special Relativity
- Speciality Fibres
- Species
- Specific Dynamic Action
- Specific Performance
- Speckle Interferometry
- Speckle Pattern
- Spectacled Bear
- Spectacles
- Spectatoriale Tijdschriften (Eng spectatorials)
- Spectroscopy
- Spectrum
- Speech Pathology
- Speed (photography)
- Speed (physics)
- Speedometer
- Speedway
- Speedwell
- Speenhamland System
- Speleology / Spelaeology
- Spelling Reform
- Spencer (Bonadventure) Tracy Biography (1900–67)
- Spencer Frederick Gore Biography (1878–1914)
- Spencer Fullerton Baird Biography (1823–87)
- Spencer Perceval Biography (1762–1812)
- Sperm
- Sperm Bank
- Sperm Whale
- Spermaceti
- Speusippus Biography (?–339 /338 BC)
- Spey, River
- Speyer Cathedral
- Sphalerite
- Sphere
- Sphinx
- Sphygmomanometer
- Spice
- Spider
- Spider Crab
- Spider Mite
- Spider Monkey
- Spider Plant
- Spider Wasp
- Spiegelaffäre
- Spike Lee Biography (1957– ) (popular name of Shelton Jackson Lee)
- Spike Milligan Biography (1918–2002) (popular name of Terence Alan Patrick Sean Milligan)
- Spikelet
- Spin
- Spin Glass
- Spina Bifida
- Spinal Cord
- Spindle Tree
- Spinel
- Spinello Aretino Biography (c.1346–1410) (originally Spinello di Luca Spinelli)
- Spinet
- Spinifex
- Spinning
- Spinola
- Spiny Lobster
- Spiracle
- Spiraea / Spirea
- Spirits
- Spiritualism
- Spiro (Konstantin) Kostof Biography (1936–91)
- Spiro T(heodore) Agnew Biography (1918–96)
- Spirochaete
- Spiroplasm
- Spit
- Spitalfields
- Spitz ((Ger ‘pointed’))
- Spleen
- Spleenwort
- Split (Ital Spalato)
- Spoils System
- Spokane
- Spoleto (Lat Spoletium)
- Spondylosis
- Sponge
- Spontaneous Generation
- Spontaneous Symmetry Breaking
- Spoonbill
- Spoonworm
- Spoorwegstakingen (Eng ‘railway strikes’)
- Sporangium
- Spore
- Sporophyte
- Sporozoa
- Sporting Dog
- Sports Injuries
- Sports Medicine
- Sports, Book Of
- Spotted Tail Biography (?1833–81) (originally Sinte Gleska)
- Sprain
- Sprat
- Spreadsheet
- Spring And Autumn Annals (Chin Chunqiu or Ch'un-ch'iu)
- Spring Tide
- Springbok Or Springbuck
- Springboks
- Springer Spaniel
- Springfield (Illinois)
- Springfield (Massachusetts)
- Springfield (Missouri)
- Springfield (Ohio)
- Springhaas
- Springtail
- Spruce
- Spruille Braden Biography (1894–1978)
- Sprung Rhythm
- Spurge
- Sputnik ((Russ ‘travelling companion’))
- Sputtering
- Spy Story
- Spyros Kyprianou Biography (1932–2002)
- Spätes Mittelalter (Eng late Middle Ages)
- Squall
- Squall-line
- Squanto Biography (?1580–1622)
- Square Deal
- Squash (botany)
- Squash Rackets (UK) / Squash Racquets (US)
- Squeezed Light
- Squid
- Squill
- Squint
- Squire Whipple Biography (1804–88)
- Squirrel
- Squirrel Monkey
- Squirting Cucumber
- Sr Bayard, James Asheton Biography (1767–1815)
- Sr Boggs, Thomas Hale Biography (1914–73)
- Sr Collins, Eddie Biography (1887–1951) (popular name of Edward Trowbridge CollinsSr)
- Sr Conway, James (Francis) Biography (1927–2006)
- Sr Davis, Benjamin Oliver Biography (1887–1970)
- Sr Drees, Willem Biography (1886–1988)
- Sr Fairbank, William M(artin) Biography (1917–89)
- Sr Gallier, James Biography (1798–1866)
- Sr Jones, Robert Trent Biography (1906–2000)
- Sr La Follette, Robert M(arion) Biography (1855–1925)
- Sr Laemmle, Carl Biography (1867–1939)
- Sr Powell, Adam Clayton Biography (1865–1953)
- Sr Renwick, James Biography (1792–1863)
- Sr Silliman, Benjamin Biography (1779–1864)
- Sr Swayze, John Cameron Biography (1906–95)
- Sr) Nielsen, A(rthur) C(harles Biography (1897–1980)
- Sri Aurobindo Biography (1872–1950) (originally Aurobindo Ghose)
- Sri Jayawardenapura-Kotte
- Sri Lanka (formerly Ceylon)
- Srinagar
- Srinivasa Ramanujan Biography (1887–1920)
- SS
- St (son Of Alphaeus) James Biography (1st-c) (also known as St James the Less)
- St (son Of Zebedee) James Biography (1st-c) (also known as St James the Great)
- St (‘brother’ Of Jesus) James Biography (1st-c) (also known as St James the Just)
- St Abbon Or Abbo Biography (c.945–1004)
- St Adalbert Biography (956–97) (known as the Apostle of the Prussians)
- St Adalbert Biography (?–981)
- St Adamnan Biography (c.625–704)
- St Adelaide Biography (931–99) (Ger Adelheid)
- St Agatha Biography (?–251)
- St Agnes Biography (4th-c)
- St Agnes Of Assisi Biography (1197–1253)
- St Aidan Biography (?–651) (known as the Apostle of Northumbria)
- St Ailred Of Rievaulx Biography (1109–66) (also Aelred or Ethelred)
- St Alban Biography (3rd-c)
- St Albans (Lat Verulamium)
- St Aldhelm Biography (c.640–709) (also spelled Ealdhelm)
- St Alexander Nevski Biography (c.1218–63) (also spelled Nevsky)
- St Alfonso Maria De' Liguori Biography (1696–1787) (also known as St Alphonsus Liguori)
- St Ambrose Biography (c.339–97)
- St Andrew Biography (d.c.60)
- St Andrews (Canada)
- St Andrews (UK)
- St Anne Biography (fl.1st-c BC–1st-c AD)
- St Anselm Biography (1033–1109)
- St Ansgar Or Anskar Biography (801–65) (Ger St Schariesknown as the Apostle of the North)
- St Anton Am Arlberg
- St Antonio Maria Zaccaria Biography (1502–39)
- St Antony Or Anthony Biography (c.251–356) (known as Antony the Greatalso called Antony of Egypt)
- St Antony Or Anthony Of Padua Biography (1195–1231)
- St Athanasius Biography (c.296–373)
- St Augustine Biography (354–430) (originally Aurelius Augustinusalso known as Augustine of Hippo)
- St Augustine Biography (?–604) (also known as Augustine of Canterbury)
- St Barat, Madeleine Sophie Biography (1779–1865)
- St Barbara Biography (?–c.200)
- St Bartholomew's Day Massacre
- St Bartholomew's Hospital (popularly known as Bart's or St Bart's)
- St Basil Biography (c.329–79) (known as Basil the Great)
- St Basil's Cathedral
- St Bede Or Baeda Biography (c.673–735) (known as the Venerable Bede)
- St Bee Or Bega Biography (7th-c)
- St Benedict Biscop Biography (c.628–c.689)
- St Benedict Of Nursia Biography (c.480–c.547)
- St Benno Biography (d.1106)
- St Bernadette Of Lourdes Biography (1844–79) (originally Marie Bernarde Soubirous)
- St Bernard
- St Bernard Of Clairvaux Biography (1090–1153) (known as the Mellifluous Doctor)
- St Bernard Of Menthon Biography (923–1008) (known as the Apostle of the Alps)
- St Bernard's Passes
- St Bernardino Of Siena Biography (1380–1444)
- St Blaise Or Blasius Biography (?–c.316)
- St Bonaventure Or Bonaventura Biography (c.1221–74) (known as Doctor Seraphicus (‘Seraphic Doctor’)originally Giovanni di Fidanza)
- St Boniface Biography (c.680–c.754) (originally Wynfrithknown as the Apostle of Germany)
- St Botolph Biography (?–c.680)
- St Brendan Biography (?–c.577) (known as the Navigator)
- St Bridget, Brigid, Or Bride Biography (453–523)
- St Bridget, Brigit, Or Birgitta (of Sweden) Biography (c.1302–73)
- St Bruno Biography (970–1009) (also known as Boniface)
- St Bruno Biography (925–65)
- St Bruno Of Cologne Biography (c.1030–1101)
- St Campion, Edmund Biography (1540–81)
- St Catharines
- St Catherine Biography (?–307)
- St Catherine Of Siena Biography (1347–80) (originally Caterina Benincasa)
- St Cecilia Biography (2nd-c or 3rd-c)