Word Study
a.m.
WORDNET DICTIONARY
Adjective a.m. has 1 sense
- a.m.(s = adj.all) ante meridiem - before noon; Array
Adverbial a.m. has 1 sense
- a.m.(r = adv.all) ante meridiem - before noon; "let's meet at 11 A.M."
For further exploring for "a.m." in Webster Dictionary Online