- 1(computing) a piece of computer software that can be added to a system so that it can do more things
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- 2(Canadian English) a connection to an electricity supply in a garage, etc. so that you can use an electric heater to warm the engine of a car, so that it starts more easily
Check pronunciation: plug-in