1. (noun)pool an excavation that is (usually) filled with water
2. (noun)pond, pool a smalllake "the pond was too small for sailing"
3. (noun)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"
4. (noun)consortium, pool, syndicate an association of companies for some definite purpose
5. (noun)pool any communal combination of funds "everyone contributed to the pool"
6. (noun)pool, puddle a smallbody of standingwater (rainwater) or other liquid "there were puddles of muddy water in the road after the rain"; "the body lay in a pool of blood"
7. (noun)pool, kitty the combined stakes of the betters
8. (noun)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"
9. (noun)pool, pocket billiards any of various games played on a pooltable having 6 pockets