- A unit of area in the U.S. Customary System, equal to 43,560 square feet (4,047 square meters).
- A piece of land containing this unit of area.
Middle english, from old english æcer, from latin ager field, from agere to drive, do; akin to greek agros field.
- The property is five acres.
- The farmer cultivates ten acres of corn.
- The park is fifty acres in size.
- The land is being sold for $10,000 per acre.
- They measured the size of the garden in acres.