Definition of watertown:
(n) :
The name of several places in the United States of America:
(n) :
A city in Middlesex County, Massachusetts.
(n) :
A city, the county seat of Jefferson County, New York.
(n) :
A city, the county seat of Codington County, South Dakota.
(n) :
A city in Dodge County and Jefferson County, Wisconsin.
(n) :
A ghost town in Kings County, California.