turn on

Separable

Definition

activate

"Could you turn on the lights?"

The object can go between the verb and particle: turn it up or turn up it (if pronoun: turn it up).

turn offdeactivate / cause disgust turn uparrive / increase volume turn downrefuse / decrease volume turn outresult / produce turn intotransform into turn overflip / hand over turn backreturn to starting point turn insubmit / go to bed