end run vs American football

end run and American football both are nouns.

Word	Noun	Adjective	Verb	Adverb
end run	Yes	No	No	No
American football	Yes	No	No	No

end run (noun)	American football (noun)
(American football) an attempt to advance the ball by running around the end of the line	a game played by two teams of 11 players on a rectangular field 100 yards long; teams try to get possession of the ball and advance it across the opponents goal line in a series of (running or passing) plays