Pool

an excavation that is (usually) filled with water

a small lake

an organization of people or resources that can be shared

an association of companies for some definite purpose

any communal combination of funds

a small body of standing water (rainwater) or other liquid

the combined stakes of the betters

something resembling a pool of liquid

any of various games played on a pool table having 6 pockets

combine into a common fund

join or form a pool of people