Definition of "plug in" in English

Verb

1. To connect (an electrical device) to a plug socket.

2. To familiarize and integrate (a person) into an organization.

3. To replace a variable with a number in order to solve an equation.

   • If an equation has three unknowns, you can plug in two of them to find the third.

4. To input or enter (data).

5. To become involved in something.