Definitions for: Plug

[n] an old or over-worked horse
[n] an upright hydrant for drawing water to use in fighting a fire
[n] blockage consisting of an object designed to fill a hole tightly
[n] an electrical device with two or three pins that is inserted in a socket to make an electrical connection
[n] electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
[n] blatant or sensational promotion
[n] a wad of something chewable as tobacco
[v] persist in working hard; "Students must plug away at this problem"
[v] make a plug for; praise the qualities or in order to sell or promote
[v] deliver a punch to
[v] fill or close tightly with or as if with a plug; "plug the hole"; "stop up the leak"

Webster (1913) Definition: Plug, n.

Breech plug (Gun.), in breech-loading guns, the metal plug
or cylinder which closes the aperture in the breech,
through which the gun is loaded. Plug board Plug board
A switchboard in which connections are made by means of

Plug, n. [Akin to D. plug, G. pflock, Dan. pl["o]k, plug,
Sw. plugg; cf. W. ploc.]
1. Any piece of wood, metal, or other substance used to stop
or fill a hole; a stopple.

2. A flat oblong cake of pressed tobacco. [U. S.]

3. A high, tapering silk hat. [Slang, U.S.]

4. A worthless horse. [Slang, U.S.]

5. (Building) A block of wood let into a wall, to afford a
hold for nails.

Fire plug, a street hydrant to which hose may be attached.
[U. S.]

Hawse plug (Naut.), a plug to stop a hawse hole.

Plug and feather. (Stone Working) See Feather, n., 7.

Plug centerbit, a centerbit ending in a small cylinder
instead of a point, so as to follow and enlarge a hole
previously made, or to form a counterbore around it.

Plug rod (Steam Eng.), a rod attached to the beam for
working the valves, as in the Cornish engine.

Plug valve (Mech.), a tapering valve, which turns in a case
like the plug of a faucet.

Plug, v. t. [imp. & p. p. Plugged; p. pr. & vb. n.
To stop with a plug; to make tight by stopping a hole.

Synonyms: ballyhoo, chaw, chew, cud, fire hydrant, fireplug, hack, hoopla, hype, jade, male plug, nag, plug away, punch, quid, secure, spark plug, sparking plug, stop up, stopper, stopple, wad

See Also: advertise, advertize, bit, bite, block, blockage, bung, chink, close, closure, cork, cork, cork up, drainplug, electrical device, enter, Equus caballus, fill, fill up, fipple, hang in, hang on, hit, hold on, horse, hydrant, ignition, ignition system, infix, insert, introduce, morsel, occlusion, packaging, persevere, persist, phone plug, promote, promotion, promotional material, publicity, push, spigot, spile, stop, stoppage, stopper, stopple, tampion, tampon, tampon, tap, telephone plug

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