- The definition of an acre is a unit of measure that is equal to 43,560 square feet or a square which measures 208.71 feet by 208.71 feet.
A standard National Football League field not including the end zones is an example of something that is just over an acre.
acre definition by Webster's New World
- 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. ac
- specific holdings in land; lands
- Informal a large quantity
- Obsolete field
Origin: Middle English ; from Old English æcer, field (akin to Gothic akrs, German acker, Classical Latin ager) ; from Indo-European an unverified form aĝros (from source Classical Greek agros), field, literally , place to which cattle are driven ; from base an unverified form a-: see act
acre definition by American Heritage Dictionary
- Abbr. a. or ac. A unit of area in the U.S. Customary System, used in land and sea floor measurement and equal to 160 square rods, 4,840 square yards, or 43,560 square feet. See Table at measurement.
- acres Property in the form of land; estate.
- A wide expanse, as of land or other matter. Often used in the plural: “Everything was streaky pink marble and acres of textureless carpeting” (Anne Tyler).
- Archaic A field or plot of arable land.
Origin: Middle English aker, field, acre, from Old English ǽcer; see agro- in Indo-European roots.
acre - Science Definition