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 training course idiom[ C/U ]   audio   plural A’s or As in Western music, the sixth note in the dimensions (= series of notes) that commences about the Observe C, or even a list of notes according to this noteWhen the ancient Greeks adopted the alphabet, that t… Read More