stay fresh vs remain

stay fresh and remain both are verbs.

Word	Noun	Adjective	Verb	Adverb
stay fresh	No	No	Yes	No
remain	No	No	Yes	No

As verbs, remain is a hypernym of stay fresh; that is, remain is a word with a broader meaning than stay fresh:

Other hypernyms of stay fresh include rest, stay.

stay fresh (verb)	remain (verb)
fail to spoil or rot	stay the same; remain in a certain state
	be in a certain place and not leave
	continue in a place, position, or situation
	be left; of persons, questions, problems, results, evidence, etc.