*a b c*

1. The first three letters of the alphabet, used for the whole alphabet. [ 1913 Webster ]

2. A primer for teaching the alphabet and first elements of reading. [ Obs. ] [ 1913 Webster ]

3. The simplest rudiments of any subject; as, the A B C of finance. [ 1913 Webster ]

A B C book, a primer. Shak. [ 1913 Webster ]