bruise

Short definition from Wiktionary

Verb

1. 1
   To strike (a person), originally with something flat or heavy, but now specifically in such a way as to discolour the skin without breaking it; to contuse.
2. 2
   To damage the skin of (fruit or vegetables), in an analogous way.
3. 3
   Of fruit or vegetables, to gain bruises through being handled roughly.
4. 4
   To become bruised.
5. 5
   To fight with the fists; to box.
6. 6
   To harm or injure somebody's feelings or self-esteem.
7. 7
   To impair (gin) by shaking rather than stirring.

Noun

1. 1
   A purplish mark on the skin due to leakage of blood from capillaries under the surface that have been damaged by a blow.
2. 2
   A dark mark on fruit or vegetables caused by a blow to the surface.