n. A dagger having a blade slender and narrow, and thick in proportion to its width—that is, triangular, square, etc., in section, instead of flat.n. A small sharp-pointed implement used for making eyelet-holes and for similar purposes. Stilettos are of ivory, bone, metal, and other materials.n. A beard trimmed into a sharp-pointed form.To strike or wound with a stiletto; hence, in general, to stab.