Thrust  —v. (past and past part. Thrust) 1 push with a sudden impulse or with force. 2 (foll. By on) impose (a thing) forcibly; enforce acceptance of (a thing). 3 (foll. By at, through) pierce, stab; lunge suddenly. 4 make (one's way) forcibly. 5 (as thrusting adj.) Aggressive, ambitious. —n. 1 sudden or forcible push or lunge. 2 propulsive force produced by a jet or rocket engine. 3 strong attempt to penetrate an enemy's line or territory. 4 remark aimed at a person. 5 stress between the parts of an arch etc. 6 (often foll. By of) chief theme or gist of remarks etc. [old norse]