acre Meaning, Definition & Usage

  1. noun a unit of area (4840 square yards) used in English-speaking countries
  2. noun a territory of western Brazil bordering on Bolivia and Peru
  3. noun a town and port in northwestern Israel in the eastern Mediterranean
    Accho; Akko; Akka.

WordNet

A"cre noun
Etymology
OE. aker, AS. æcer; akin to OS. accar, OHG. achar, Ger. acker, Icel. akr, Sw. åker, Dan. ager, Goth. akrs, L. ager, Gr. , Skr. ajra. *2, 206.
Definitions
  1. Any field of arable or pasture land. Obs.
  2. A piece of land, containing 160 square rods, or 4,840 square yards, or 43,560 square feet. This is the English statute acre. That of the United States is the same. The Scotch acre was about 1.26 of the English, and the Irish 1.62 of the English. ✍ The acre was limited to its present definite quantity by statutes of Edward I., Edward III., and Henry VIII.
    I like that ancient Saxon phrase, which calls The burial ground, God's acre. Longfellow.

Webster 1913