Easton's Bible Dictionary: M. G. Easton, M.A., D.D.

Acre

Is the translation of a word (tse'med), which properly means a yoke, and denotes a space of ground that may be ploughed by a yoke of oxen in a day. It is about an acre of our measure (Isa. 5:10; 1 Sam. 14:14).

Original from The Bible Foundation - bf.org. They claim public domain status for their original text.