plug
//plʌɡ//
Noun
A device with metal pins that connects an electrical appliance to a power supply by fitting into a socket.
I need to replace the plug on my lamp.
An object or piece of material used to block or fill a hole or gap.
He used a wooden plug to fill the hole in the wall.
A piece of favorable publicity or promotion for a product, service, or event.
The author gave his new book a plug on the radio show.
A spark plug in an engine.
The mechanic replaced the plugs in my car.
Verb
To block or fill a hole or gap with something.
He plugged the hole in the wall with cement.
To connect an electrical device to a power supply.
I need to plug in my laptop to charge it.
To promote or publicize something persistently.
The author appeared on several TV shows to plug her new book.
To work steadily and persistently at something.
She plugged away at her studies and finally passed the exam.