A small and rather deep collection of (usually) fresh water, as one supplied by a spring, or occurring in the course of a stream; a reservoir for water.
User Defined Definitions
"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"
"the combined stakes of the betters"
"something resembling a pool of liquid"
"any of various games played on a pool table having 6 pockets"