Tap

1. (noun) A tapering cylindrical pin or peg used to stop the vent in a cask. 2. (noun) A device used to dispense liquids. 3. (noun) Liquor drawn through a tap; hence, a certain kind or quality of liquor. 4. (noun) A place where liquor is drawn for drinking. 5. (noun) A device used to cut an internal screw thread. (External screw threads are cut with a die.) 6. (noun) A connection made to an electrical or fluid conductor without breaking it. 7. (noun) An interception of communication by authority. 8. (noun) A device used to listen in secretly on telephone calls. 9. (noun) A procedure that removes fluid from a body cavity. 10. (verb) To furnish with taps. 11. (verb) To draw off liquid from a vessel. 12. (verb) To deplete, especially of a liquid via a tap; to tap out. 13. (verb) To exploit. 14. (verb) To place a listening or recording device on a telephone or wired connection. 15. (verb) To intercept a communication without authority. 16. (verb) To cut an internal screw thread. 17. (verb) To turn or flip a card or playing piece to remind players that it has already been used that turn (by analogy to "tapping," in the sense of drawing on to the point of temporary exhaustion, the resources or abilities represented by the card). 18. (verb) To cadge, borrow or beg. 19. (verb) To drain off fluid by paracentesis. 20. (verb) To advance someone for a post or job, or for membership of a club.