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 class idiom[ C/U ]   new music   plural A’s or As in Western music, the sixth Be aware in the size (= series of notes) that commences about the note C, or simply a list of notes based on this noteWhen The traditional Greeks adopted the alphabet, they'd no use f… Read More