1. a piece of wood or other material used to stop up a hole or aperture, to fill a gap, or to act as a wedge.
2. a core or interior segment taken from a larger matrix.
3. a device to which may be attached the conductors of a cord and which by insertion in a jack, or screwing into a receptacle, establishes contact.
4. spark plug (def. 1).
5. a fireplug or hydrant.
6. a cake of pressed tobacco.
7. a piece of tobacco cut off for chewing.
8. the favorable mention of something, as in a lecture, radio show, etc.; advertisement; recommendation: The actress was happy to give her new show a plug.
9. an artificial lure made of wood, plastic, or metal, and fitted with one or more gang hooks, used chiefly in casting.
10. neck (def. 14).
11. a worn-out or inferior horse.
12. a shopworn or unsalable article.
13. a small piece of sod used especially for seeding a lawn.
14. a patch of scalp with viable hair follicles that is used as a graft for a bald part of the head.
15. punch¹ (def. 1).
16. Metalworking.
• a mandrel on which tubes are formed.
• a punch on which a cup is drawn.
• a protrusion on a forging die for forming a recess in the work.
• a false bottom on a die.
17. a small piece of wood inserted into masonry as a hold for a nail.
18. See under plug and feathers.
19. a man's tall silk hat.

20. to stop or fill with or as if with a plug (often followed by up): to plug up a leak; plug a gap.
21. to insert or drive a plug into.
22. to secure with or as if with a plug.
23. to insert (something) as a plug.
24. to remove a core or a small plug-shaped piece from.
25. to remove the center of (a coin) and replace it with a baser metal: a plugged nickel.
26. to mention (something) favorably, as in a lecture, radio show, etc.: He says he will appear if he can plug his new TV series.
27. to punch with the fist.
28. to shoot or strike with a bullet.

29. to work with stubborn persistence (often followed by along or away): You're doing a fine job—just keep plugging. Some writers will plug away at the same novel for several years.
30. to publicize insistently: Whenever he gets the chance, he's plugging for his company.
31. to shoot or fire shots.

32. plug in,
• to connect to an electrical power source: Plug the TV set in over there.
• to add or include; incorporate: They still have to plug in more research data.
33. plug into,
• to connect or become connected by or as if by means of a plug: The device will plug into any convenient wall outlet. The proposed new departments would eventually plug into the overall organizational plan.
• to feel an affinity for; like; understand: Some kids just don't plug into sports in school.
34. to become plugged: The drain in the sink plugs up every so often.

35. pull the plug on, Informal.
• to discontinue or terminate: The government has threatened to pull the plug on further subsidies.
• to disconnect life-sustaining equipment from (a moribund patient).

1. a piece of wood, cork, or other material, often cylindrical in shape, used to stop up holes and gaps or as a wedge for taking a screw or nail
2. such a stopper used esp to close the waste pipe of a bath, basin, or sink while it is in use and removed to let the water drain away
3. a device having one or more pins to which an electric cable is attached: used to make an electrical connection when inserted into a socket
4. a mass of solidified magma filling the neck of an extinct volcano
5. See sparking plug
• a cake of pressed or twisted tobacco, esp for chewing
• a small piece of such a cake
7. a weighted artificial lure with one or more sets of hooks attached, used in spinning
8. a seedling with its roots encased in potting compost, grown in a tray with compartments for each individual plant
9. a recommendation or other favourable mention of a product, show, etc, as on television, on radio, or in newspapers
10. a shot, blow, or punch (esp in the phrase take a plug at)
11. the mechanism that releases water to flush a lavatory (esp in the phrase pull the plug)
12. an old horse
13. to put a stop to

14. to stop up or secure (a hole, gap, etc) with or as if with a plug
15. to insert or use (something) as a plug
16. to make favourable and often-repeated mentions of (a song, product, show, etc), esp on television, on radio, or in newspapers
17. to shoot with a gun
18. to punch or strike
19. to work steadily or persistently

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