From WordNet (r) 3.0 (2006):
aggregate adj 1: formed of separate units gathered into a mass or whole; "aggregate expenses include expenses of all divisions combined for the entire year"; "the aggregated amount of indebtedness" [syn: aggregate, aggregated, aggregative, mass] 2: composed of a dense cluster of separate units such as carpels or florets or drupelets; "raspberries are aggregate fruits" n 1: the whole amount [syn: sum, total, totality, aggregate] 2: material such as sand or gravel used with cement and water to make concrete, mortar, or plaster 3: a sum total of many heterogenous things taken together [syn: aggregate, congeries, conglomeration] v 1: amount in the aggregate to 2: gather in a mass, sum, or whole [syn: aggregate, combine]