Definition of "Dummer"

A surname.  examples

A place name:

1. A town in Coos County, New Hampshire, United States.  examples

2. A community in the Rural Municipality of Caledonia No. 99, Saskatchewan, Canada.  examples

3. A village and civil parish south-west of Basingstoke, Basingstoke and Deane district, Hampshire, England (OS grid ref SU5846).  examples