fire iron vs poker

fire iron and poker both are nouns.

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

As nouns, poker is a hyponym of fire iron; that is, poker is a word with a more specific, narrower meaning than fire iron:

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

Other hyponyms of fire iron include coal tongs, fire tongs, fire hook, salamander, stove poker, shovel.

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