All G&A a/c A/D a/r A/S a/s/l C/A See all meanings Idioms and phrases with a collision course idiom[ C/U ]   songs   plural A’s or As in Western music, the sixth Observe in the size (= series of notes) that commences within the Take note C, or maybe a set of notes dependant on this NoticeA will be the letter which was used to represent a crew i