Definition of thornhill:
(n) :
A surname.
(n) :
Various places in the United Kingdom:
(n) :
A small city in Jefferson County, Kentucky, United States.
(n) :
A town in Kouga Local Municipality, Eastern Cape, South Africa.
(n) :
A village in Enoch Mgijima Local Municipality, Eastern Cape, South Africa.
(n) :
A community near Terrace, British Columbia, Canada.