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English definition of “plug”

plug

noun [C] (ELECTRICAL)    /plʌɡ/
B1 a small plastic or rubber object with two or three metal pins, fixed to the end of a wire on a piece of electrical equipment and pushed into a special opening in a wall to connect the equipment to a supply of electricity: a three-pin/two-pin plug to fit/change a plug If a plug is wired incorrectly, it can be dangerous.Electrical switches and connections mainly UK informal an electric socket: Is there a plug in the bedroom that I can use for my hairdryer?Electrical switches and connections US for jack plugElectrical switches and connections informal for spark plugElectrical switches and connectionsThe engine and engine partsEngines and motors
(Definition of plug noun (ELECTRICAL) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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