1. Something causing excitement or stimulating interest
   "His intelligence was a major turn-on for her"

1. Cause to operate by flipping a switch
   "turn on the stereo";
   - switch on
    
2. Be contingent on
   "Success turns on careful preparation";
   - 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. Cause to be agitated, excited, or roused
   "The speech turned on the crowd";
   - agitate, rouse, charge, commove [archaic], excite, charge up
    
5. To evoke sexual feelings
   "This movie usually turns on the male audience";
   - arouse, excite, wind up
    
6. Become hostile towards
   "The dog suddenly turned on the mailman"
    
7. [informal] Get high, stoned, or drugged
   "The teenagers turned on at the party";
   - trip, trip out [informal], get off [informal]

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

Type of: ask, bring forth, call for, change, demand, disturb, excite, experience, feel, flip, input, involve, necessitate, need, postulate, produce, require, shake, shake up, stimulant, stimulation, stimulus, stir, switch, take, throw, trouble, upset

Encyclopedia: Turn-on