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turn around
turn away
turn back
turn-based
turn down
turn in
turn into
turn off
turn on
turn-on
turn out
turn over
turn to
turn up
turnabout
turnaround
turnbuckle
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turn on

turn on


verb 
Definition:
 
1. transitive verb start something operating: to make a machine or appliance operate, or make something start flowing, by operating a control

2. transitive verb set something to on position: to move a device such as a button, knob, or lever so that a machine starts working or something starts flowing

3. transitive verb adopt calculated behavior: to display a particular behavior or emotion in a way that people find calculated, irritating, or insincere
He'll really turn on the charm if he thinks he's losing the sale.

4. transitive verb react aggressively to somebody: to react aggressively or violently to somebody

5. transitive verb make somebody excited: to interest or excite somebody greatly ( informal )

6. transitive verb arouse somebody: to make somebody feel sexually excited ( informal )

7. transitive and intransitive verb take illegal drugs: to take drugs, especially a hallucinogenic drug, or cause somebody to take a hallucinogen or similar drug ( informal )

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