v.
 (past sang; past part. sung)
     - 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.
 - (of a bird) make characteristic melodious whistling and twittering sounds.
 - make a high-pitched sound.
 - informal act as an informer to the police.
 - recount or celebrate, especially in poetry.
 
n.
 informal an act or period of singing.
 
  Phrase
  
    
      - sing the praises of
 see praise. 
    
   
  Derivative
  
    - singable adj.
  - singer n.
  - singing n. & adj.
  - singingly adv.
 
   
  Etymology
  OE singan (v.), of Gmc origin.