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.n. A thrust or blow with the point of a weapon, especially a dagger.n. A wound made with a sharp-pointed weapon.n. A wound given in the dark; a treacherous injury.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.n. In bacteriology, a culture of bacteria produced by stabbing the inoculating needle into the solid medium. See culture.n. 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.n. See the extracts.