noun

1. An English unit of land area (symbol: a. or ac.) originally denoting a day's plowing for a yoke of oxen, now standardized as 4,840 square yards or 4,046.86 square meters.

2. Any of various similar units of area in other systems.

3. (usually in the plural) A wide expanse.

   “I like my new house - there’s acres of space!”

Synonyms: morgen, feddan, arpen, arpent, pose, bigha, cawney, cawny