| | Acre [Definition] (Site not responding. Last check: 2007-11-07) |
 | | An acre is a measure of land area in Imperial unitsThe Imperial units are an irregularly standardized system of units that have been used in the United Kingdom and its former colonies, including the United States and Commonwealth countries. |
 | | The acre was selected as approximately the amount of land tillable by one manA man (from Proto-Germanic mannaz "man, person") is a male human adult, in contrast to an adult female, which is a woman. |
 | | An acre-foot is a measure of volume used to measure large volumes of water, an acre-foot being the volume necessary to cover one acre to a depth of one foot, 43,560 cubic feet (1233.5 cubic meters or 325 850 U.S. gallonsThe gallon is a unit of volume used for measuring liquids (as well as dry matter). |
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