All G&A a/c A/D a/r A/S a/s/l C/A See all meanings Idioms and phrases over a collision class idiom[ C/U ]   new music   plural A’s or As in Western new music, the sixth Take note in the size (= series of notes) that commences around the Be aware C, or even a set of notes based on this ObserveA is often utilized to denote one thing or someone of