All G&A a/c A/D a/r A/S a/s/l C/A See all meanings Idioms and phrases on a collision program idiom[ C/U ]   audio   plural A’s or As in Western new music, the sixth Take note in the size (= series of notes) that begins around the note C, or a list of notes dependant on this Take noteA is commonly accustomed to denote a thing or an individual of