- a city in SE Michigan, on the Detroit River.
- a river in SE Michigan, flowing S from Lake St. Clair to Lake Erie, forming part of the boundary between the U.S. and Canada. About 32 miles (52 km) long.
- the U.S. automobile industry.
- a city in SE Michigan, on the Detroit River: a major Great Lakes port; largest car-manufacturing centre in the world. Pop: 911 402 (2003 est)
- a river in central North America, flowing along the US-Canadian border from Lake St Clair to Lake Erie
