Cowlitz (noun) Definition, Meaning & Examples

noun, plural Cow·litz·es, (especially collectively) Cow·litz for 3.

a river in southwestern Washington State, flowing west and south to the Columbia River. 130 miles (209 km) long.
a county in southwestern Washington State. 1,166 sq. mi. (3,021 sq. km).
a member of either of two tribes of Indigenous people of western Washington State traditionally living around the Cowlitz River, the lower tribe speaking a Salishan language and the upper tribe gradually adopting a Sahaptin language through intermarriage with Sahaptin people.