Definition of Sing

Verb: sing (sang,sung) sing

(music) produce tones with the voice
"She was singing while she was cooking"; "My brother sings very well"
(music) deliver by singing
"Sing Christmas carols"
To make melodious sounds
"The nightingale was singing"
Make a whining, ringing, or whistling sound
"the kettle was singing"; "the bullet sang past his ear";
- whistle
Divulge confidential information or secrets
"Be careful--his secretary sings";
- spill the beans, let the cat out of the bag, talk, tattle, blab, peach, babble, babble out, blab out