What is the meaning of trip?

noun

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

verb

• Miss a step and fall or nearly fall.
  • usage: "She stumbled over the tree root"
  • synonyms: stumble
• Cause to stumble.
  • usage: "The questions on the test tripped him up"
  • synonyms: trip up
• Make a trip for pleasure.
  • synonyms: travel, jaunt
• Put in motion or move to act.
  • usage: "trigger a reaction"; "actuate the circuits"
  • synonyms: actuate, trigger, activate, set off, spark off, spark, trigger off, touch off
• Get high, stoned, or drugged.
  • usage: "He trips every weekend"
  • synonyms: trip out, turn on, get off