U.S. House of Representatives vs House of Representatives

U.S. House of Representatives and House of Representatives both are nouns.

Word	Noun	Adjective	Verb	Adverb
U.S. House of Representatives	Yes	No	No	No
House of Representatives	Yes	No	No	No

As nouns, U.S. House of Representatives and House of Representatives are synonyms defined as:

U.S. House of Representatives and House of Representatives: the lower legislative house of the United States Congress

Other synonyms of U.S. House of Representatives include U.S. House, United States House of Representatives, US House, US House of Representatives.

U.S. House of Representatives (noun)	House of Representatives (noun)
the lower legislative house of the United States Congress	the lower legislative house of the United States Congress