acre

/ˈeɪ.kɚ/

IPA: /EY1 K ER0/

noun
  1. 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. 2

    Any of various similar units of area in other systems.

  3. 3

    (usually in the plural) A wide expanse.

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

  4. 4

    (usually in the plural) A large quantity.

  5. 5

    A field.

  6. 6

    The acre's breadth by the length, English units of length equal to the statute dimensions of the acre: 22 yds (≈20 m) by 220 yds (≈200 m).

  7. 7

    A duel fought between individual Scots and Englishmen in the borderlands.

Source: https://en.wiktionary.org/wiki/acre