- acre [ā′kər]n.[ME < OE æcer, field (akin to Goth akrs, Ger acker, L ager) < IE * aĝros (> Gr agros), field, lit., place to which cattle are driven < base * ag̑-: see ACT1]1. a unit of land area in the FPS system, equal to 4,840 square yards or 160 square rods (0.4047 hectare or 4,046.8564 square meters): abbrev. ac2. [pl.] specific holdings in land; lands3. [pl.] Informal a large quantity4. Obs. field: see GOD'S ACRE
English World dictionary. V. Neufeldt. 2014.