1. (verb, chiefly British) To sink a ball into a pocket . See also pocket (verb).
2. (noun, chiefly British) An instance of potting a ball ("it was a good pot considering the angle and distance of the shot ").
3. (noun) Pooled money being played for in money games or tournaments, as in poker and other gambling activities. This very old term derives from players placing their stakes into a pot or other receptacle before play begins.