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 system idiom[ C/U ]   music   plural A’s or As in Western tunes, the sixth Observe in the dimensions (= number of notes) that starts on the Be aware C, or a list of notes based on this Be awareA would be the letter which was accustomed to characterize a group i… Read More