turn on

US /tɜːrn ɑːn/
UK /tɜːrn ɑːn/
"turn on" picture
1.

allumer, mettre en marche

to start the flow or operation of something by means of a switch, button, or other control

:
Could you please turn on the lights?
Pourriez-vous s'il vous plaît allumer les lumières ?
I need to turn on my computer to check emails.
Je dois allumer mon ordinateur pour vérifier mes e-mails.
2.

exciter, stimuler

to excite or stimulate (someone), especially sexually

:
That song always turns her on.
Cette chanson l'excite toujours.
His intelligence really turns me on.
Son intelligence m'excite vraiment.
3.

se retourner contre, attaquer

to attack or become hostile toward (someone or something)

:
The dog suddenly turned on its owner.
Le chien s'est soudainement retourné contre son propriétaire.
The crowd turned on the speaker after his controversial remarks.
La foule s'est retournée contre l'orateur après ses remarques controversées.