Seattle (pronounced /siːˈætl̩/) is a coastal port city and the largest city in the Pacific Northwest region of the United States. It is located in the state of Washington between an arm of the Pacific Ocean called Puget Sound and Lake Washington.
Washington, D.C. (pronounced /ˌuɒʃɪŋtəndiːˈsiː/) is the capital of the United States. It is coterminous with the District of Columbia (abbreviated as "D.C."). The city and the district are located on the banks of the Potomac River.