trip in WordNet English dictionary

1. put in motion or move to act
   "trigger a reaction"; "actuate the circuits"
   trip  actuate  trigger  activate  set off  spark off  spark  trigger off  touch off 
   
2. get high, stoned, or drugged
   "He trips every weekend"
   trip  trip out  turn on  get off 
   
3. make a trip for pleasure
   travel  trip  jaunt 
   
4. miss a step and fall or nearly fall
   "She stumbled over the tree root"
   stumble  trip 
   
5. cause to stumble
   "The questions on the test tripped him up"
   trip  trip up 
   

1. an exciting or stimulating experience
   trip  head trip 
   
2. an unintentional but embarrassing blunder
   "he recited the whole poem without a single trip"; "he arranged his robes to avoid a trip-up later"; "confusion caused his unfortunate misstep"
   trip  trip-up  stumble  misstep 
   
3. an accidental misstep threatening (or causing) a fall
   "he blamed his slip on the ice"; "the jolt caused many slips and a few spills"
   slip  trip 
   
4. a journey for some purpose (usually including the return)
   "he took a trip to the shopping center"
   trip 
   
5. a light or nimble tread
   "he heard the trip of women's feet overhead"
   trip 
   
6. a catch mechanism that acts as a switch
   "the pressure activates the tripper and releases the water"
   tripper  trip 
   
7. a hallucinatory experience induced by drugs
   "an acid trip"
   trip