5 definitions found From WordNet (r) 2.0 [wn]: Ar noun 1: a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere [syn: {argon}, {atomic number 18}] 2: a unit of surface area equal to 100 square meters [syn: {are}] 3: a state in south central United States; one of the Confederate states during the American Civil War [syn: {Arkansas}, {Land of Opportunity}] From The Collaborative International Dictionary of English v.0.44 [gcide]: Ar \Ar\, conj. Ere; before. [Obs.] --Chaucer. || From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]: ar The {country code} for Argentina. (1999-01-27) From Hitchcock's Bible Names Dictionary (late 1800's) [hitchcock]: Ar, awakening; uncovering From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]: AR Administrative Request [message] (LFAP)

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