stab

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To pierce or wound with or as if with a pointed weapon.
• intransitive verb To plunge (a pointed weapon or instrument) into something.
• intransitive verb To make a thrusting or poking motion at or into.
• intransitive verb To thrust with or as if with a pointed weapon.
• intransitive verb To inflict a wound with or as if with a pointed weapon.
• noun A thrust with a pointed weapon or instrument.
• noun A wound inflicted with or as if with a pointed weapon.
• noun A sudden piercing pain.
• noun An attempt; a try.
• idiom (stab (someone) in the back) To harm (someone) by treachery or betrayal of trust.

from The Century Dictionary.

• To puncture, pierce, or wound with or as with a pointed weapon, especially with a knife or dagger.
• To thrust or plunge, as a pointed weapon.
• Figuratively, to pierce or penetrate; inflict keen or severe pain upon: injure secretly, as by slander or malicious falsehoods: as, to stab one in the back (that is, to slander one behind his back).
• In masonry, to pick (a brick wall) so as to make it rough, and thereby afford a hold for plaster.
• To aim a blow with a dagger or other pointed weapon, either literally or figuratively: as, to stab at a person.
• To wound; be extremely cutting.
• In bookbinding, to perforate near the back folds (the assembled sections of an unbound book). This operation is immediately followed by the insertion of the thread or wire which secures the sections together.
• noun A thrust or blow with the point of a weapon, especially a dagger.
• noun A wound made with a sharp-pointed weapon.
• noun A wound given in the dark; a treacherous injury.
• noun In bacteriology, a culture of bacteria produced by stabbing the inoculating needle into the solid medium. See culture.
• noun In billiards, a foreshortened stroke, causing the cue-ball, for some special reason, to stop in the place of the one it set in motion.
• noun See the extracts.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb To give a wound with a pointed weapon; to pierce; to thrust with a pointed weapon.
• intransitive verb To wound or pain, as if with a pointed weapon.
• intransitive verb to offer or threaten to stab; to thrust a pointed weapon at.
• noun The thrust of a pointed weapon.
• noun A wound with a sharp-pointed weapon.
• noun Fig.: An injury inflicted covertly or suddenly.
• transitive verb To pierce with a pointed weapon; to wound or kill by the thrust of a pointed instrument; ; also, to thrust.
• transitive verb Fig.: To injure secretly or by malicious falsehood or slander.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An act of stabbing or thrusting with an object.
• noun A wound made by stabbing.
• noun Pain inflicted on a person's feelings.
• noun informal An attempt.
• noun Criticism.
• verb transitive To pierce or to wound with a pointed tool or weapon, especially a knife or dagger.
• verb intransitive To recklessly hit with the tip of a pointed object, such as a weapon or finger (often used with at).
• verb intransitive To cause a sharp, painful sensation (often used with at).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb use a knife on
• noun a sudden sharp feeling
• verb stab or pierce
• noun a strong blow with a knife or other sharp pointed instrument
• verb poke or thrust abruptly
• noun informal words for any attempt or effort