Definition of "plug into" in English

Verb

1. To connect an electric device into something using a plug.

   • I spent ages trying to fix my computer, before realizing that it wasn't plugged into the wall.

2. To join something in the manner of a plug.

3. To become aware of or knowledgeable about.

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

   • If you know two sides of a right triangle, you can find the third by plugging them into the Pythagorean Theorem.