plug2 past tense and past participle plugged, present participle plugging [transitive]
1 also plug up
to fill or block a small hole:
We used mud to plug up the holes in the roof.
to advertise a book, film etc by mentioning it on television or radio:
Arnie was on the show to plug his new movie.
to provide something that is needed, because there is not enough:
With so few trained doctors, paramedics were brought in to plug the gap.
4 American English old-fashioned
to shoot someone
plug awayphrasal verb
plug away at
If you keep plugging away at it, your English will improve.
plug something ↔ inphrasal verb
to connect a piece of electrical equipment to the main supply of electricity, or to another piece of electrical equipment:
'Is your printer working?' 'Wait a minute - it's not plugged in.'
plug into somethingphrasal verb
to connect one piece of electrical equipment to another, or to be connected:
Your phone can be plugged into the cigarette lighter socket in your car.
Games consoles plug into the back of the TV.
to realize that something is available to be used and use it:
A lot of students don't plug into all the research facilities we have.