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 course idiom[ C/U ]   songs   plural A’s or As in Western songs, the sixth note in the size (= number of notes) that starts on the Observe C, or simply a set of notes dependant on this Be awareA is usually utilized to denote one thing or somebody of an even b