Definitions for ar
Overview of noun ar
The noun ar has 3 senses? (no senses from tagged texts)
1. argon, Ar, atomic number 18
(a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere)
2. are, ar
(a unit of surface area equal to 100 square meters)
3. Arkansas, Land of Opportunity, AR
(a state in south central United States; one of the Confederate states during the American Civil War)
