running play vs football play

running play and football play both are nouns.

Word	Noun	Adjective	Verb	Adverb
running play	Yes	No	No	No
football play	Yes	No	No	No

As nouns, football play is a hypernym of running play; that is, football play is a word with a broader meaning than running play:

running play: (American football) a play in which a player attempts to carry the ball through or past the opposing team
football play: (American football) a play by the offensive team

running play (noun)	football play (noun)
(American football) a play in which a player attempts to carry the ball through or past the opposing team	(American football) a play by the offensive team