To push or drive quickly and forcibly. See Synonyms at push. To issue or extend: poplars thrusting their branches upward; thrust out his finger. To force into a specified condition or situation: She thrust herself through the crowd. He was thrust into a position of awesome responsibility. To include or interpolate improperly. To force on an unwilling or improper recipient: "Some have greatness thrust upon them\u201d ( Shakespeare). Archaic To stab; pierce. To shove something into or at something else; push. To pierce or stab with or as if with a pointed weapon. To force one's way. A forceful shove or push. A driving force or pressure. The forward-directed force developed in a jet or rocket engine as a reaction to the high-velocity rearward ejection of exhaust gases. A piercing movement made with or as if with a pointed weapon; a stab. The essence; the point: The whole thrust of the project was to make money. Architecture Outward or lateral stress in a structure, as that exerted by an arch or vault. An attack or assault, especially by an armed force.