Source : Webster's Revised Unabridged Dictionary (1913)

Trip \Trip\, v. t.
   1. To cause to stumble, or take a false step; to cause to
      lose the footing, by striking the feet from under; to
      cause to fall; to throw off the balance; to supplant; --
      often followed by up; as, to trip up a man in wrestling.

            The words of Hobbes's defense trip up the heels of
            his cause.                            --Abp.
                                                  Bramhall.

   2. Fig.: To overthrow by depriving of support; to put an
      obstacle in the way of; to obstruct; to cause to fail.

            To trip the course of law, and blunt the sword.
                                                  --Shak.

   3. To detect in a misstep; to catch; to convict. [R.]

            These her women can trip me if I err. --Shak.

   4. (Naut.)
      (a) To raise (an anchor) from the bottom, by its cable or
          buoy rope, so that it hangs free.
      (b) To pull (a yard) into a perpendicular position for
          lowering it.

   5. (Mach.) To release, let fall, or see free, as a weight or
      compressed spring, as by removing a latch or detent.

Trip \Trip\, n. i. [imp. & p. p. {Tripped}; p. pr. & vb. n.
   {Tripping}.] [OE. trippen; akin to D. trippen, Dan. trippe,
   and E. tramp. See {Tramp}.]
   1. To move with light, quick steps; to walk or move lightly;
      to skip; to move the feet nimbly; -- sometimes followed by
      it. See {It}, 5.

            This horse anon began to trip and dance. --Chaucer.

            Come, and trip it, as you go, On the light fantastic
            toe.                                  --Milton.

            She bounded by, and tripped so light They had not
            time to take a steady sight.          --Dryden.

   2. To make a brief journey or pleasure excursion; as, to trip
      to Europe.

   3. To take a quick step, as when in danger of losing one's
      balance; hence, to make a false; to catch the foot; to
      lose footing; to stumble.

   4. Fig.: To be guilty of a misstep; to commit an offense
      against morality, propriety, or rule; to err; to mistake;
      to fail. ``Till his tongue trip.'' --Locke.

            A blind will thereupon comes to be led by a blind
            understanding; there is no remedy, but it must trip
            and stumble.                          --South.

            Virgil is so exact in every word that none can be
            changed but for a worse; he pretends sometimes to
            trip, but it is to make you think him in danger when
            most secure.                          --Dryden.

            What? dost thou verily trip upon a word? --R.
                                                  Browning.

Trip \Trip\, n.
   1. A quick, light step; a lively movement of the feet; a
      skip.

            His heart bounded as he sometimes could hear the
            trip of a light female step glide to or from the
            door.                                 --Sir W.
                                                  Scott.

   2. A brief or rapid journey; an excursion or jaunt.

            I took a trip to London on the death of the queen.
                                                  --Pope.

   3. A false step; a stumble; a misstep; a loss of footing or
      balance. Fig.: An error; a failure; a mistake.

            Imperfect words, with childish trips. --Milton.

            Each seeming trip, and each digressive start.
                                                  --Harte.

   4. A small piece; a morsel; a bit. [Obs.] ``A trip of
      cheese.'' --Chaucer.

   5. A stroke, or catch, by which a wrestler causes his
      antagonist to lose footing.

            And watches with a trip his foe to foil. --Dryden.

            It is the sudden trip in wrestling that fetches a
            man to the ground.                    --South.

   6. (Naut.) A single board, or tack, in plying, or beating, to
      windward.

   7. A herd or flock, as of sheep, goats, etc. [Prov. Eng. &
      Scott.]

   8. A troop of men; a host. [Obs.] --Robert of Brunne.

   9. (Zo["o]l.) A flock of widgeons.

Source : WordNet®

trip
     n 1: a journey for some purpose (usually including the return);
          "he took a trip to the shopping center"
     2: a hallucinatory experience induced by drugs; "an acid trip"
     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" [syn: {slip}]
     4: an exciting or stimulting experience [syn: {head trip}]
     5: a catch mechanism that acts as a switch; "the pressure
        activates the tripper and releases the water" [syn: {tripper}]
     6: a light or nimble tread; "he heard the trip of women's feet
        overhead"
     7: 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" [syn: {trip-up}, {stumble}, {misstep}]
     [also: {tripping}, {tripped}]

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