English definition of “plug”
/plʌg/ noun [C]
ELECTRICITY › a plastic or rubber object with metal pins, used to connect electrical equipment to an electricity supply: I need to change the plug on my hairdryer.
HOLE › something you put in a hole to block it: a bath plug
ADVERTISEMENT › when someone talks about a new book, film, etc in public to advertise it: She managed to get in a plug for her new book. → See also spark plug