Meaning

• 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.

  "the pools of Solomon"

• A small body of standing or stagnant water; a puddle.

• A supply of resources.

  "There is a limited pool of candidates from which to choose the new manager."

• (by extension) A set of resources that are kept ready to use.

• A small amount of liquid on a surface.

  "a pool of blood"

• A localized glow of light.

Meaning

• (of a liquid) To form a pool.

Meaning

• A pool of water used for swimming, usually one which has been artificially constructed.