​ACRE, a denomination used in the measurement of land: an acre consists of four square roods, each containing 40 perches, or poles. In different countries it varies, according to the length of the pole, which is from 16 1/2 to 28 feet. It is, also, divided into ten square chains, of twenty-two yards each, or 4840 square yards. According to Dr. Grew, the number of acres in England amounts to 46,080,000.