breve  
noun [ C ] uk/briːv/ us/briːv/
  (MUSIC)      
 music UK specialized二全音符 
a musical note with a time value equal to two semibreves 
  The string parts are full of breves and semibreves.
 - More examples
- That same birdsong, with the same trills, quavers, and breves, has heard at sunset for centuries untold.
- It reads you the notes from a large computer screen so you need never confuse your crochets with your breves again.
- You know that repeated baritone breve which just oozes disapproval, like blowing a raspberry.