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1. Cause to operate by flipping a switch
   "turn on the stereo";
   - switch on
    
2. Be contingent on
   - depend on, devolve on, depend upon, ride, hinge on, hinge upon
    
3. Produce suddenly or automatically
   "Turn on the charm"; "turn on the waterworks"
    
4. Become hostile towards
   "The dog suddenly turned on the mailman"
    
5. Cause to be agitated, excited, or roused
   - agitate, rouse, charge, commove, excite, charge up
    
6. To evoke sexual feelings
   "This movie usually turns on the male audience";
   - arouse, sex, excite, wind up
    
7. [informal] Get high, stoned, or drugged
   "He turns on every weekend";
   - trip, trip out, get off [informal]

1. Something causing excitement or stimulating interest

Derived forms: turned on, turn-ons, turning on, turns on

Type of: bring forth, change, disturb, excite, flip, input, produce, shake, shake up, stimulant, stimulate, stimulation, stimulus, stir, switch, throw, trouble, upset

Antonym: cut

Encyclopedia: Turn on, tune in, drop out