n. 1.an excavation that is (usually) filled with water 2.a small lake 3.an organization of people or resources that can be shared 4.an association of companies for some definite purpose 5.any communal combination of funds 6.a small body of standing water (rainwater) or other liquid 7.the combined stakes of the betters 8.something resembling a pool of liquid 9.any of various games played on a pool table having 6 pockets pool v. 1.combine into a common fund 2.join or form a pool of people