fresh fish vs soldier

fresh fish and soldier both are nouns.

Word	Noun	Adjective	Verb	Adverb
fresh fish	Yes	No	No	No
soldier	Yes	No	Yes	No

As nouns, soldier is a hypernym of fresh fish; that is, soldier is a word with a broader meaning than fresh fish:

fresh fish: soldiers who are regarded as expendable in the face of artillery fire
soldier: an enlisted man or woman who serves in an army

fresh fish (noun)	soldier (noun)
soldiers who are regarded as expendable in the face of artillery fire	a wingless sterile ant or termite having a large head and powerful jaws adapted for defending the colony
	an enlisted man or woman who serves in an army

fresh fish (verb)	soldier (verb)
	serve as a soldier in the military