Real Dictionary

pool in American English 1
a small pond, as in a garden
to form, or accumulate in, a pool
adjective: of or for a pool
intransitive verb: to form a pool
noun: a small body of standing water; pond
transitive verb: to cause pools to form in

pool in American English 2
the total amount of the players' stakes played for, as in a single deal of a card game; pot
adjective: of or belonging to a pool
intransitive verb: to enter into or form a pool
noun: any of various games played on a pool table with a cue ball and 15 other balls that are usually numbered, in which the object is to drive all the balls into the pockets with the cue ball
transitive verb: to put (resources, money, etc.) into a pool, or common stock or fund, as for a financial venture, according to agreement

pool in British English 1
noun: a small body of still water, usually fresh; small pond

pool in British English 2
to combine (investments, money, interests, etc) into a common fund, as for a joint enterprise
noun: any communal combination of resources, funds, etc