remain vs keep out

remain and keep out both are verbs.

Word	Noun	Adjective	Verb	Adverb
remain	No	No	Yes	No
keep out	No	No	Yes	No

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

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

remain (verb)	keep out (verb)
stay the same; remain in a certain state	remain outside
be in a certain place and not leave	prevent from entering; shut out
continue in a place, position, or situation
be left; of persons, questions, problems, results, evidence, etc.