Definition of "Cornwall"

A maritime county of England; forming its south-western extremity, bordered by Devon in the east.  examples

The country of the Cornish, currently having the status of a royal duchy in England belonging to the male heir apparent to the reigning monarch, and consisting at least of the Cornwall County and the Isles of Scilly.  examples

The westernmost of the three historical counties of Jamaica, bordered by the county of Middlesex in the east; named for the English county.  examples

A city in Ontario.  examples

A town in Queens County, Prince Edward Island, Canada.  examples

A town in Connecticut.  examples

A town in Orange County, New York.  examples

A borough in Pennsylvania.  examples

A town in Vermont.  examples

A surname.  examples