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 music, the sixth Be aware in the scale (= series of notes) that starts around the Notice C, or even a set of notes dependant on this Be awareA is frequently accustomed to denote some thing or a person o