noun
- A colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere.
- synonyms: argon, atomic number 18
- A unit of surface area equal to 100 square meters.
- synonyms: are
- A state in south central United States; one of the Confederate states during the American Civil War.
- synonyms: Arkansas, Land of Opportunity
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). ar. Retrieved September 20, 2026, from http://smartdefine.org/ar/definitions/1257216 |
| Chicago | WordNet. 2010. "ar" http://smartdefine.org/ar/definitions/1257216 (accessed September 20, 2026). |
| Harvard | WordNet 2010, ar, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/ar/definitions/1257216>. |
| MLA | WordNet. "ar" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/ar/definitions/1257216> |