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ABCDEFGHIJKLMNOPQRSTUVWXYZ
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a.m.
A. N. Other
a/o
A-OK
a.p.
A & P mix
a posteriori
a priori
A & R
A-road
a.s.a.p.
A share
A-side
A-team
a tempo
A to Z
a.u.
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a (1)
a [ ay ] (plural a's) or A (plural A's or As)


noun 
Definition:
 
1. 1st letter of English alphabet: the first letter of the English alphabet, representing a vowel sound
2. letter 'a' written: a written representation of the letter 'a'
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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