Entry 1 sense Webster, 1913 Acreage /āk'-ẽr-ĭj/ · A·cre·age · IPA /ˈeɪk(ə)ɹɪd͡ʒ/ 01 n. Acres collectively; as, the acreage of a farm or a country. 1. Acres collectively; as, the acreage of a farm or a country.