cray

Short definition from Wiktionary

Noun

1. 1
   A crayfish or lobster.

Adjective

1. 1
   Crazy.

Proper noun

1. 1
   A surname.
2. 2
   A short river in Greater London which flows into the River Darent.
3. 3
   A community (civil parish) in southern Powys, Wales.