The definition of AR is an abbreviation for the state of Arkansas.(abbreviation)
An example of the usage of AR is to use the abbreviation when addressing an envelope.
AR is an abbreviation for Army Regulation.(abbreviation)
An example of an AR is the type and condition of uniform men and women in the Army must wear.
See A & R in Webster's New World College Dictionary
Origin: modeled on scholar, etc.-er
Origin: < ME -er < OFr -er, -ier, -air < L -aris; or directly < L -aris; also < L -arius, a suffix of nouns of agency
See A & R in American Heritage Dictionary 4
Origin: Middle English arre
Origin: , from Late Latin er.
Origin: Middle English
Origin: , from Old French -er
Origin: , from Latin -āris
Origin: , variant of -ālis, -al.
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