bristle

Short definition from Wiktionary

Noun

1. 1
   A stiff or coarse hair on a nonhuman mammal or on a plant.
2. 2
   A chaeta: an analogous filament on arthropods, annelids, or other animals.
3. 3
   The hairs or other filaments that make up a brush, broom, or similar item, typically made from plant cellulose, animal hairs, or synthetic polymers.

Verb

1. 1
   To rise or stand erect, like bristles.
2. 2
   To abound, to be covered with, or to have an abundance of, something, especially something jutting out.
3. 3
   To be on one's guard or raise one's defenses; to react with fear, suspicion, or distance.
4. 4
   To make (something) rise or stand erect, like bristles.
5. 5
   To cause (someone) to be on one's guard or raise one's defenses.
6. 6
   To fix a bristle or bristles to.

Proper noun

1. 1
   Bristol, England (in imitation of the local dialect)