Nouns

(n)plug, stopper, stoppleblockage consisting of an object designed to fill a hole tightly
(n)chew, chaw, cud, quid, plug, wada wad of something chewable as tobacco
(n)ballyhoo, hoopla, hype, plugblatant or sensational promotion
(n)spark plug, sparking plug, plugelectrical device that fits into the cylinder head of an internal-combustion engine and ignites the gas by means of an electric spark
(n)plug, male plugan electrical device with two or three pins that is inserted in a socket to make an electrical connection
(n)fireplug, fire hydrant, plugan upright hydrant for drawing water to use in fighting a fire
(n)hack, jade, nag, plugan old or over-worked horse

Verbs

(v)plug, stop up, securefill or close tightly with or as if with a plug“plug the hole”, “stop up the leak”
(v)plug, plug awaypersist in working hard“Students must plug away at this problem”
(v)punch, plugdeliver a quick blow to“he punched me in the stomach”
(v)plugmake a plug for; praise the qualities or in order to sell or promote
(v)plugreplace the center of a coin with a baser metal“plug a nickle”
(v)pluginsert a plug into“plug the wall”
(v)pluginsert as a plug“She plugged a cork in the wine bottle”