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English definition of “plug”

plug

noun [C] (FOR HOLE)    /plʌɡ/
B1 a small piece of rubber , plastic , wood , etc. that fits into a hole in order to close it → See also earplugLids, covers and stoppers B1 a round piece of rubber or plastic that fits into the hole in a sink or a bath : a bath plug Put the plug in the sink and run some water .Bathroom fixtures and fittings a small piece of plastic or wood that you put into a hole in a wall before putting a screw into itToolsGardening tools a small piece of material such as cotton wool, twisted or pressed tightly so it is firm Medical dressings, supports and devices
(Definition of plug noun (FOR HOLE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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