noun🔗ShareArAn accepted (but deprecated and rarely used) SI unit of area equal to 100 square metres, or a former unit of approximately the same extent. Symbol: a.""The small community garden was measured as just over two ares in size, though modern measurements would use square meters instead." "Der kleine Gemeinschaftsgarten wurde mit etwas mehr als zwei Ar gemessen, obwohl moderne Messungen stattdessen Quadratmeter verwenden würden.areaunitmathscienceChat with AIVocabulary GamePractice Reading