AREN'T Meaning of AREN'T in English aren’t /ɑːnt $ ˈɑːr ə nt/ BrE AmEa) the short form of ‘are not’:They aren’t here. b) the short form of ‘am not’, used in questions:I’m in big trouble, aren’t I? Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012