There is a total of 21193 clues beginning with si
- Sing à la Crosby
- Sing à la Crosby
- Sing a love song to
- Sing a love song, perhaps
- Sing a lullaby to, eg
- Sing a lullaby, perhaps
- Sing a lullaby, say
- Sing a paean to
- Sing a scale
- Sing a simple song
- Sing a siren's song
- Sing about?
- Sing across the Alps
- Sing adequately
- Sing again, as for a show finale
- Sing again
- Sing alone
- Sing along
- Sing along silently
- Sing along, maybe
- Sing Alpine-appropriately
- Sing Alpine-style
- Sing alternative
- Sing an Ink Spots song, say
- Sing as Bing sang
- Sing at Sing Sing?
- Sing ballads, perhaps
- Sing ballads, say
- Sing barbershop-style
- Sing by changing register
- Sing cheerfully
- Sing cheerfully
- Sing Christmas tunes
- Sing cowboy songs, maybe
- Sing door-to-door
- Sing door-to-door in December
- Sing Dufourspitze-style
- Sing falsetto
- Sing for a lover
- Sing from the mountaintops
- Sing full out
- Sing gently
- Sing gibberish
- Sing gustily
- Sing high notes?
- Sing in a carefree way
- Sing in a certain way
- Sing in a full voice
- Sing in a full, happy voice
- Sing in a high range?
- Sing in a low tone
- Sing in a low, gentle tone
- Sing in a round
- Sing in a way
- Sing in a way
- Sing in certain syllables
- Sing in court
- Sing in honor of
- Sing in monotone
- Sing in the Alps
- Sing in the shower, say
- Sing in the snow
- Sing in the snow, perhaps
- Sing in the street
- Sing in Tyrol, maybe
- Sing jazz standards, perhaps
- Sing jazz, in a way
- Sing jovially
- Sing joyfully
- Sing joyously
- Sing like "Der Bingle"
- Sing like --
- Sing like 35-Across
- Sing like a bird
- Sing like a bird
- Sing like a bird?
- Sing like a canary
- Sing like a mountaineer
- Sing like a soprano
- Sing like a Tyrolean
- Sing like Andy Williams or Russ Columbo
- Sing like Bing
- Sing like Bing Crosby
- Sing like Buble
- Sing like Cab Calloway
- Sing like Cab or Ella
- Sing like Cardi B
- Sing like Como
- Sing like Connick
- Sing like Crosby
- Sing like Dean Martin
- Sing like Der Bingle
- Sing like Ella
- Sing like Ella Fitzgerald
- Sing like Fitzgerald
- Sing like Harry Connick Jr
- Sing like Jarreau
- Sing like Joe Cocker
- Sing like Mel Tormé
- Sing like Merman