thrust

[thruhst]
verb (used with object), thrust, thrusting.
1.
to push forcibly; shove; put or drive with force: He thrust his way through the crowd. She thrust a dagger into his back.
2.
to put boldly forth or impose acceptance of: to thrust oneself into a conversation between others; to thrust a dollar into the waiter's hand.
3.
to extend; present: He thrust his fist in front of my face.
4.
Archaic. to stab or pierce, as with a sword: She thrust his back with a dagger.
verb (used without object), thrust, thrusting.
5.
to push against something.
6.
to push or force one's way, as against obstacles or through a crowd.
7.
to make a thrust, lunge, or stab at something.
noun
8.
an act or instance of thrusting; a forcible push or shove; lunge or stab.
9.
a lunge or stab, as with a sword.
10.
Mechanics. a linear reactive force exerted by a propeller, propulsive gases, etc., to propel a ship, aircraft, etc.
11.
Geology. a compressive strain in the crust of the earth that, in its most characteristic development, produces reverse or thrust faults.
12.
the main point, purpose, or essence: The thrust of his speech was an urgent appeal for votes.
13.
Machinery. a pushing force or pressure exerted by a thing or a part against a contiguous one.
14.
Architecture. the downward and outward force exerted by an arch on each side.
15.
an organized military attack; assault; offensive.

Origin:
1125–75; Middle English thrusten, thrysten (v.) < Old Norse thrȳsta to thrust, force, press

counterthrust, noun
prethrust, noun, verb (used with object), prethrust, prethrusting.
unthrust, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
thrust (θrʌst)
 
vb (foll by through) (foll by at) , thrusts, thrusting, thrust
1.  (tr) to push (someone or something) with force or sudden strength: she thrust him away; she thrust it into the fire
2.  (tr) to force or impose upon (someone) or into (some condition or situation): they thrust extra responsibilities upon her; she was thrust into the limelight
3.  to pierce; stab
4.  (intr; usually foll by through or into) to force a passage or entrance
5.  (intr) to push forwards, upwards, or outwards
6.  to make a stab or lunge at (a person or thing)
 
n
7.  a forceful drive, push, stab, or lunge
8.  a force, esp one that produces motion
9.  a.  a propulsive force produced by the fluid pressure or the change of momentum of the fluid in a jet engine, rocket engine, etc
 b.  a similar force produced by a propeller
10.  a pressure that is exerted continuously by one part of an object, structure, etc, against another, esp the axial force by or on a shaft
11.  geology
 a.  the compressive force in the earth's crust that produces recumbent folds and thrust or reverse faults
 b.  See thrust fault
12.  civil engineering a force exerted in a downwards and outwards direction, as by an arch or rafter, or the horizontal force exerted by retained earth
13.  force, impetus, or drive: a man with thrust and energy
14.  the essential or most forceful part: the thrust of the argument
 
[C12: from Old Norse thrysta; related to Latin trūdere; see intrude]

thrusting (ˈθrʌstɪŋ)
 
adj
ambitious and having great drive: a thrusting young executive

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

thrust
c.1175, from O.N. þrysta "to thrust, force," from P.Gmc. *thrustijanan, perhaps from PIE *trud- "push, press" (see threat), but OED finds this derivation doubtful. The noun is recorded from 1513; fig. sense of "principal theme, aim, point, purpose" is recorded from 1968.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
thrust   (thrŭst)  Pronunciation Key 
The force that propels an object in a given direction, especially when generated by the object itself, as by an engine or rocket.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The left solid rocket booster continues to fly, still thrusting.
People thrusting their hands through the taxi window, begging.
Probably padded with horsehair or wool, the helmet cap was made of hammered
  iron for protection from slashing or thrusting blades.
These circles are likely caused by frost heave, the upward thrusting of the
  ground.
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