A plug is something that blocks a hole, particularly one that water normally flows through. For some reason, it also means to promote something. If you plug your new book, you sneak it into every conversation.

You can buy a plug at a hardware store — it might be made of rubber, so it fits snugly in your kitchen sink drain. There are also accidental plugs that block the flow of water through a pipe, and plugs that fit securely in wall sockets. These plugs form a connection between an electrical source and an appliance, rather than stemming the flow. And to plug means to stop up or block, or alternately, to try hard to promote something.

Definitions of plug
  1. noun
    blockage consisting of an object designed to fill a hole tightly
    synonyms: stopper, stopple
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    bung, spile
    a plug used to close a hole in a barrel or flask
    bottle cork, cork
    the plug in the mouth of a bottle (especially a wine bottle)
    a removable plug for holding water in a tub or basin
    a plug of cotton, wax, or rubber that is fitted into the ear canal for protection against the entry of water or loud noise
    a wooden plug forming a flue pipe (as the mouthpiece of a recorder)
    tampion, tompion
    plug for the muzzle of a gun to keep out dust and moisture
    plug of cotton or other absorbent material; inserted into wound or body cavity to absorb exuded fluids (especially blood)
    spigot, tap
    a plug for a bunghole in a cask
    tampon used to absorb menstrual flow
    type of:
    block, blockage, closure, occlusion, stop, stoppage
    an obstruction in a pipe or tube
  2. noun
    a wad of something chewable as tobacco
    synonyms: chaw, chew, cud, quid, wad
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    type of:
    bit, bite, morsel
    a small amount of solid food; a mouthful
  3. noun
    an upright hydrant for drawing water to use in fighting a fire
    synonyms: fire hydrant, fireplug
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    type of:
    a discharge pipe with a valve and spout at which water may be drawn from the mains of waterworks
  4. verb
    fill or close tightly with or as if with a plug
    plug the hole”
    synonyms: secure, stop up
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    stopper, stopple
    close or secure with or as if with a stopper
    plug with a tampon
    fill the chinks of, as with caulking
    cork, cork up
    close a bottle with a cork
    type of:
    close, fill up
    fill or stop up
  5. verb
    insert a plug into
    plug the wall”
  6. verb
    insert as a plug
  7. verb
    deliver a quick blow to
    synonyms: punch
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    type of:
    deal a blow to, either with the hand or with an instrument
  8. noun
    electrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
    synonyms: spark plug, sparking plug
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    type of:
    electrical device
    a device that produces or is powered by electricity
  9. noun
    an electrical device with two or three pins that is inserted in a socket to make an electrical connection
    synonyms: male plug
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    phone plug, telephone plug
    a plug for connecting a telephone
    type of:
    electrical device
    a device that produces or is powered by electricity
  10. noun
    blatant or sensational promotion
    synonyms: ballyhoo, hoopla, hype
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    type of:
    packaging, promotion, promotional material, publicity
    a message issued in behalf of some product or cause or idea or person or institution
  11. verb
    make a plug for; praise the qualities or in order to sell or promote
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    type of:
    advertise, advertize, promote, push
    make publicity for; try to sell (a product)
  12. noun
    an old or over-worked horse
    synonyms: hack, jade, nag
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    type of:
    Equus caballus, horse
    solid-hoofed herbivorous quadruped domesticated since prehistoric times
  13. verb
    persist in working hard
    “Students must plug away at this problem”
    synonyms: plug away
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    type of:
    hang in, hang on, hold on, persevere, persist
    be persistent, refuse to stop
Word Family

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