tarpon vs tenpounder

tarpon and tenpounder both are nouns.

Word	Noun	Adjective	Verb	Adverb
tarpon	Yes	No	No	No
tenpounder	Yes	No	No	No

As nouns, tenpounder is a hyponym of tarpon; that is, tenpounder is a word with a more specific, narrower meaning than tarpon:

tarpon: large silvery game fish of warm Atlantic coastal waters especially off Florida
tenpounder: game fish resembling the tarpon but smaller

Other hyponyms of tarpon include Elops saurus, ladyfish.

tarpon (noun)	tenpounder (noun)
large silvery game fish of warm Atlantic coastal waters especially off Florida	game fish resembling the tarpon but smaller