A region of the northwestern United States usually including Washington and Oregon and sometimes southwestern British Columbia WordNet 3.0 & Open English WordNet

The Pacific Northwest, sometimes referred to as Cascadia, is a geographic region in western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Wikipedia

Unofficial region in the United States and Canada Wikipedia Disambiguation

Region of western North America Wikidata

An area that includes part of the west coast of United States and Canada, including southeast Alaska, all of British Columbia, Washington, Oregon, Idaho, western Montana and northern California and Nevada. OmegaWiki

The region of North America along the Pacific coast, typically defined as the states of Washington and Oregon and the southern part of the province of British Columbia, but variously including northern California, Idaho, all of British Columbia, the Yukon territory, and the panhandle of or all of Alaska. Wiktionary

Region of North America. Wiktionary (translation)