# turn on

> English word · Verb

## Definitions
1. To set a flow of fluid or gas running by rotating a tap or valve.
2. To power up, to put into operation, to start, to activate (an appliance, light, mechanism, functionality etc.).
3. To start operating; to power up, to become on.
4. To introduce (someone to something), and especially to fill them with enthusiasm (about it); to intoxicate, give pleasure to ( + to an object of interest or excitement).
5. To sexually arouse.
6. To take drugs.
7. To cause to take up drugs, especially hallucinogens.
8. To aim at.
9. To rebel against; to suddenly attack.
10. To cause (someone) to rebel against or suddenly attack (someone else).
11. To depend upon; to pivot around, to have as a central subject.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/turn-on