This is the 7156th most frequent Japanese word.
ワシントン
Washington.
In this sentence, 'ワシントン' refers to Washington, D.C., the capital city of the United States. It is used as a proper noun representing the geographical location.
ワシントンはアメリカ合衆国の首都です。
Washington is the capital of the United States.
Here, 'ワシントン' refers to George Washington, the historical figure and the first president of the United States. It is used as part of the person's name.
ジョージ・ワシントンはアメリカの初代大統領です。
George Washington was the first president of the United States.
In this case, 'ワシントン' denotes the destination city for the trip, which is understood from context to be Washington, D.C. It is used in a context of travel or experience.