shiv

Short definition from Wiktionary

Noun

1. 1
   A knife, especially a makeshift one fashioned from something not normally used as a weapon (like a plastic spoon or a toothbrush).
2. 2
   A particular woody by-product of processing flax or hemp.

Verb

1. 1
   To stab (someone) with a shiv.
2. 2
   To stab (someone) with anything not normally used as a stabbing weapon.

Proper noun

1. 1
   A male given name from Sanskrit mainly used in India.
2. 2
   A diminutive of the female given name Siobhan.