plug

verb1 of 2

an electrical connector; to fill or close tightly so liquid or air cannot pass

• “The oil drain plug should be pretty easy to find.”Tatoeba
• “Make sure all the cables are plugged in properly.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

noun2 of 2

A pronged connecting device which fits into a mating socket, especially an electrical one.