ARKANSAS Meaning of ARKANSAS in English Ar ‧ kan ‧ sas /ˈɑːkənsɔː $ ˈɑːr-/ BrE AmE written abbreviation , AR a state in the south central part of the US, west of the Mississippi River Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012