ebony

Short definition from Wiktionary

Noun

1. 1
   A hard, dense, deep black wood from various subtropical and tropical trees, especially of the genus Diospyros.
2. 2
   A tree that yields such wood.
3. 3
   A deep, dark black colour.
4. 4
   Dark skin colour.
5. 5
   A black key on a piano or other keyboard instrument (as opposed to ivory).

Adjective

1. 1
   Made of ebony wood.
2. 2
   A deep, dark black colour.
3. 3
   Dark-skinned; black; especially in reference to African-Americans.

Proper noun

1. 1
   A female given name from English.
2. 2
   A stereotypical African-American woman.