Stiletto

Part of speech: noun (n.)

1. A kind of dagger with a slender, rounded, and pointed blade.

2. A pointed instrument for making eyelet holes in embroidery.

3. A beard trimmed into a pointed form. [Obs.] The very quack of fashions, the very he that Wears a stiletto on his chin. Ford.

Part of speech: verb (v.)

To stab or kill with a stiletto. Bacon.