A state in the northwestern corner of the United States. Its capital is Olympia and its largest city is Seattle.
The state of Washington is not to be confused with Washington, D.C. If you are talking about the state, just say "Washington." I HATE it when people call it Washington State!
Two men, Jason and Mark, meet each other at Yellowstone National Park and start talking.
Jason: Where are you from?
Jason: Washington, D.C.?
Mark: No, Washington State. If I was talking about Washington D.C., I would have said Washington D.C.!