Stiletto (noun)

1. A slender knife with a tapered blade and sharp point, used as a weapon.
2. A type of high-heeled shoe with a slender, tapered high heel.

Origin:

Late 16th century: from italian stiletto, literally 'dagger', diminutive of stilo, from latin stilus 'stake, pointed instrument'.

Examples:

1. The thief brandished a stiletto in front of the storekeeper.
2. She was wearing a stunning dress and a pair of red stilettos.
3. The stiletto heels made a clicking sound as she walked down the hallway.
4. She was able to defend herself with her stiletto when the attacker came at her.
5. The stilettos added an extra touch of glamour to her outfit for the night.