Definitions
1.nounA 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."the pools of Solomon"
2.nounA small body of standing or stagnant water; a puddle.
3.nounA supply of resources."There is a limited pool of candidates from which to choose the new manager."
4.noun(by extension) A set of resources that are kept ready to use.
5.nounA small amount of liquid on a surface."a pool of blood"
6.nounA localized glow of light.
7.verb(of a liquid) To form a pool.
8.nounA pool of water used for swimming, usually one which has been artificially constructed.