affixed to a name, abbreviation of Modern Latin Artium Baccalaureus "Bachelor of Arts" (see bachelor), 1773, American English. British English preferred B.A., perhaps because A.B. was used in Britain to mean able-bodied on seamen's papers.
a posteriori
a priori
A&P
A.A.
A.A.A.
A.B.
A.D.
A.H.
a.k.a.
a.m.
A.P.R.
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