poker vs fire iron

poker and fire iron both are nouns.

Word	Noun	Adjective	Verb	Adverb
poker	Yes	No	No	No
fire iron	Yes	No	No	No

As nouns, fire iron is a hypernym of poker; that is, fire iron is a word with a broader meaning than poker:

poker: fire iron consisting of a metal rod with a handle; used to stir a fire
fire iron: metal fireside implements

poker (noun)	fire iron (noun)
any of various card games in which players bet that they hold the highest-ranking hand	metal fireside implements
fire iron consisting of a metal rod with a handle; used to stir a fire