| drainplug | (noun) a removable plug for holding water in a tub or basin | - |
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| earplug | (noun) a plug of cotton, wax, or rubber that is fitted into the ear canal for protection against the entry of water or loud noise | - |
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| (noun) an earphone that is inserted into the ear canal | - |
| fireplug | (noun) an upright hydrant for drawing water to use in fighting a fire | Synonyms: fire hydrant, plug |
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| plug | (noun) an old or over-worked horse | Synonyms: hack, jade, nag |
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| (noun) blockage consisting of an object designed to fill a hole tightly | Synonyms: stopper, stopple |
| (noun) an upright hydrant for drawing water to use in fighting a fire | Synonyms: fire hydrant, fireplug |
| (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 |
| (noun) an electrical device with two or three pins that is inserted in a socket to make an electrical connection | Synonyms: male plug |
| (noun) blatant or sensational promotion | Synonyms: ballyhoo, hoopla, hype |
| (noun) a wad of something chewable as tobacco | Synonyms: chaw, chew, cud, quid, wad |
| (verb) persist in working hard | Synonyms: plug away |
| (verb) insert as a plug | - |
| (verb) insert a plug into | - |
| (verb) replace the center of a coin with a baser metal | - |
| (verb) make a plug for; praise the qualities or in order to sell or promote | - |
| (verb) deliver a quick blow to | Synonyms: punch |
| (verb) fill or close tightly with or as if with a plug | Synonyms: secure, stop up |
| unplug | (verb) pull the plug of (electrical appliances) and render inoperable | Synonyms: disconnect |
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