singing

Concise Oxford English Dictionary © 2008 Oxford University Press:
sing/sɪŋ/

▶verb (past sang; past part. sung)

• 1 make musical sounds with the voice, especially words with a set tune.

  ■ perform (a song) in this way.

  ■ (sing along) sing in accompaniment to a song or piece of music.

• 2 (of a bird) make characteristic melodious whistling and twittering sounds.

• 3 make a high-pitched sound.

• 4 informal act as an informer to the police.

• 5 recount or celebrate, especially in poetry.

▶noun informal an act or period of singing.

– phrases
sing the praises of see praise.

– derivatives
singable adjective,
singer noun,
singing noun & adjective,
singingly adverb.

– origin OE singan (v.), of Gmc origin.