Source : Webster's Revised Unabridged Dictionary (1913)

Thrust \Thrust\, n. & v.
   Thrist. [Obs.] --Spenser.

Thrust \Thrust\, v. t. [imp. & p. p. {Thrust}; p. pr. & vb. n.
   {Thrusting}.] [OE. ?rusten, ?risten, ?resten, Icel. ?r?st? to
   thrust, press, force, compel; perhaps akin to E. threat.]
   1. To push or drive with force; to drive, force, or impel; to
      shove; as, to thrust anything with the hand or foot, or
      with an instrument.

            Into a dungeon thrust, to work with slaves.
                                                  --Milton.

   2. To stab; to pierce; -- usually with through.

   {To thrust away} or {from}, to push away; to reject.

   {To thrust in}, to push or drive in.

   {To thrust off}, to push away.

   {To thrust on}, to impel; to urge.

   {To thrust one's self in} or {into}, to obtrude upon, to
      intrude, as into a room; to enter (a place) where one is
      not invited or not welcome.

   {To thrust out}, to drive out or away; to expel.

   {To thrust through}, to pierce; to stab. ``I am eight times
      thrust through the doublet.'' --Shak.

   {To thrust together}, to compress.

Thrust \Thrust\, v. t. [imp. & p. p. {Thrust}; p. pr. & vb. n.
   {Thrusting}.] [OE. ?rusten, ?risten, ?resten, Icel. ?r?st? to
   thrust, press, force, compel; perhaps akin to E. threat.]
   1. To push or drive with force; to drive, force, or impel; to
      shove; as, to thrust anything with the hand or foot, or
      with an instrument.

            Into a dungeon thrust, to work with slaves.
                                                  --Milton.

   2. To stab; to pierce; -- usually with through.

   {To thrust away} or {from}, to push away; to reject.

   {To thrust in}, to push or drive in.

   {To thrust off}, to push away.

   {To thrust on}, to impel; to urge.

   {To thrust one's self in} or {into}, to obtrude upon, to
      intrude, as into a room; to enter (a place) where one is
      not invited or not welcome.

   {To thrust out}, to drive out or away; to expel.

   {To thrust through}, to pierce; to stab. ``I am eight times
      thrust through the doublet.'' --Shak.

   {To thrust together}, to compress.

Thrust \Thrust\, v. i.
   1. To make a push; to attack with a pointed weapon; as, a
      fencer thrusts at his antagonist.

   2. To enter by pushing; to squeeze in.

            And thrust between my father and the god. --Dryden.

   3. To push forward; to come with force; to press on; to
      intrude. ``Young, old, thrust there in mighty concourse.''
      --Chapman.

   {To thrust to}, to rush upon. [Obs.]

            As doth an eager hound Thrust to an hind within some
            covert glade.                         --Spenser.

Thrust \Thrust\, n.
   1. A violent push or driving, as with a pointed weapon moved
      in the direction of its length, or with the hand or foot,
      or with any instrument; a stab; -- a word much used as a
      term of fencing.

            [Polites] Pyrrhus with his lance pursues, And often
            reaches, and his thrusts renews.      --Dryden.

   2. An attack; an assault.

            One thrust at your pure, pretended mechanism. --Dr.
                                                  H. More.

   3. (Mech.) The force or pressure of one part of a
      construction against other parts; especially (Arch.), a
      horizontal or diagonal outward pressure, as of an arch
      against its abutments, or of rafters against the wall
      which support them.

   4. (Mining) The breaking down of the roof of a gallery under
      its superincumbent weight.

   {Thrust bearing} (Screw Steamers), a bearing arranged to
      receive the thrust or endwise pressure of the screw shaft.
      

   {Thrust plane} (Geol.), the surface along which dislocation
      has taken place in the case of a reversed fault.

   Syn: Push; shove; assault; attack.

   Usage: {Thrust}, {Push}, {Shove}. Push and shove usually
          imply the application of force by a body already in
          contact with the body to be impelled. Thrust, often,
          but not always, implies the impulse or application of
          force by a body which is in motion before it reaches
          the body to be impelled.

Source : WordNet®

thrust
     v 1: push forcefully; "He thrust his chin forward"
     2: press or force; "Stuff money into an envelope"; "She thrust
        the letter into his hand" [syn: {stuff}, {shove}, {squeeze}]
     3: make a thrusting forward movement [syn: {lunge}, {hurl}, {hurtle}]
     4: impose or thrust urgently, importunately, or inexorably;
        "She forced her diet fads on him" [syn: {force}]
     5: penetrate or cut through with a sharp instrument [syn: {pierce}]
     6: geology: thrust (molten rock) into pre-existing rock
     7: push upward; "The front of the trains that had collided
        head-on thrust up into the air" [syn: {push up}]
     8: place or put with great energy; "She threw the blanket
        around the child"; "thrust the money in the hands of the
        beggar" [syn: {throw}]

thrust
     n 1: the force used in pushing; "the push of the water on the
          walls of the tank"; "the thrust of the jet engines"
          [syn: {push}]
     2: a thrusting blow with a knife or other sharp pointed
        instrument; "one strong stab to the heart killed him"
        [syn: {stab}, {knife thrust}]
     3: the act of applying force to propel something; "after
        reaching the desired velocity the drive is cut off" [syn:
        {drive}, {driving force}]
     4: verbal criticism; "he enlivened his editorials with barbed
        thrusts at politicians"
     5: a sharp hand gesture (resembling a blow); "he warned me with
        a jab with his finger"; "he made a thrusting motion with
        his fist" [syn: {jab}, {jabbing}, {poke}, {poking}, {thrusting}]