Supreme Court of the United States vs judicial branch

Supreme Court of the United States and judicial branch both are nouns.

Word	Noun	Adjective	Verb	Adverb
Supreme Court of the United States	Yes	No	No	No
judicial branch	Yes	No	No	No

Supreme Court of the United States (noun)	judicial branch (noun)
the highest federal court in the United States; has final appellate jurisdiction and has jurisdiction over all other courts in the nation	the branch of the United States government responsible for the administration of justice