1. a cellar or basement

2. a wine cellar; or, a piece of furniture that serves the purpose of a wine cellar (specifically)

3. a wine selection (by extension)

4. caves: An estate where wine grapes are grown or (especially) where wine is produced

5. cave à liqueurs: A chest for the storage of liquors

6. an idiot, a stupid person (Quebec, slang)

7. a law-abiding citizen, as opposed to a criminal (France, slang, dated)