remain vs stay fresh

remain and stay fresh both are verbs.

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

As verbs, stay fresh is a hyponym of remain; that is, stay fresh is a word with a more specific, narrower meaning than remain:

Other hyponyms of remain include keep out, sit tight, stay together, stick together, stand, keep, be.

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