There is a total of 21196 clues beginning with si
- Sir Francis
- Sir Frank ___, Britain's new Attorney General
- Sir Frank ___, historian of Anglo-Saxon England
- Sir Freddie
- Sir Freddie of Skytrain
- Sir Frederick Ashton ballet
- Sir Galahad's armor
- Sir Galahad's father
- Sir Galahad's mother
- Sir Galahad's mother
- Sir Galahad's occupation
- Sir Galahad, eg
- Sir Galahads garb
- Sir Gareth's lady
- Sir Georg of music
- Sir Georg of the Chicago Symphony
- Sir Georg Solti's gp
- Sir Georg Solti's record 31
- Sir Georg who conducted 999 Chicago Symphony concerts
- Sir Georg with a baton
- Sir George Williams's org
- Sir George ___, Indian surveyor
- Sir Geraint's extremely patient wife
- Sir Geraint's faithful wife
- Sir Geraint's patient wife
- Sir Geraint's wife
- Sir Geraint's wife, in Arthurian legend
- Sir Gerald du ___ of stage
- Sir Gladwyn of Great Britain
- Sir Gladwyn
- Sir Guinness
- Sir Hall Caine was
- Sir Hardwicke
- Sir Hardwicke or Ceballos
- Sir Harry
- Sir Harry and family
- Sir Harry Lauder, for instance
- Sir Harry
- Sir Henry for whom a gallery is named
- Sir Henry Irving, eg
- Sir Henry Percy (1364–1403)
- Sir Henry Percy
- Sir Henry who co-founded a car company in 1906
- Sir Henry Wotton's Rx?
- Sir Henry ___ (Hotspur)
- Sir Henry ___ aka Hotspur
- Sir Henry ___, pioneer in steelmaking
- Sir Henry ____ (Hotspur)
- Sir Henry's gallery
- Sir Herbert Beerbohm
- Sir Herbert Beerbohm ___
- Sir Herbert Beerbohm ___
- Sir Herbert of Haymarket
- Sir Herbert ___ Tree
- Sir Hillary of mountain-climbing fame
- Sir Hillary, of mountain-climbing fame
- Sir Hiss, in "Robin Hood," eg
- Sir in Malaya
- Sir in Malaysia
- Sir in New Delhi
- Sir in Singapore
- Sir in the Ruhr
- Sir Isaac
- Sir Isaac --
- Sir Isaac and others
- Sir Isaac and singer Wayne
- Sir Isaac Newton wrote about this … Pass it on
- Sir Isaac of science
- Sir Isaac or Juice
- Sir Isaac or Wayne
- Sir Isaac __
- Sir Isaac's will?
- Sir Jagger
- Sir James Biggers character
- Sir James Chadwick discovery of 1932
- Sir James Dewar, for one
- Sir James Galway, eg
- Sir James Galway, notably
- Sir James H Jeans
- Sir John A Macdonald's bill
- Sir John A Macdonald's bills
- Sir John A Macdonald's birthplace
- Sir John Gielgud's specialty
- Sir John Hunt's goal
- Sir John Hunt, for instance
- Sir John of London
- Sir John of old song
- Sir John of pop
- Sir John ___, "Wonderland" illustrator
- Sir John ___, former British Field Marshal
- Sir Joseph Porter's domain
- Sir Kingsley ___
- Sir Lancelot du ___
- Sir Lancelot portrayer of 1975
- Sir Lancelot's armor
- Sir Lancelot's nephew
- Sir Lancelot's protection
- Sir Lancelot's uncle
- Sir Lancelot, proven in battle?
- Sir Launcelot du ___