pool -- (an excavation that is (usually) filled with water)
pond, pool -- (a small lake; "the pond was too small for sailing")
pool -- (an organization of people or resources that can be shared; "a car pool"; "a secretarial pool"; "when he was first hired he was assigned to the pool")
consortium, pool, syndicate -- (an association of companies for some definite purpose)
pool -- (any communal combination of funds; "everyone contributed to the pool")
pool, puddle -- (a small body of standing water (rainwater) or other liquid; "there were puddles of muddy water in the road after the rain"; "the body lay in a pool of blood")
pool, kitty -- (the combined stakes of the betters)
pool, puddle -- (something resembling a pool of liquid; "he stood in a pool of light"; "his chair sat in a puddle of books and magazines")
pool, pocket billiards -- (any of various games played on a pool table having 6 pockets)
Overview of verb pool
The verb pool has 2 senses
pool -- (combine into a common fund; "We pooled resources")