sexual activity between individuals, especially the insertion of a man's penis into a woman's vagina until orgasm and ejaculation occur | slang for sexual intercourse |
communication between individuals | a fastener with a tapered threaded shank and a slotted head |
| a propeller with several angled blades that rotates to push against water or air |
| a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole |
| someone who guards prisoners |