qui vive vs strip alert

qui vive and strip alert both are nouns.

Word	Noun	Adjective	Verb	Adverb
qui vive	Yes	No	No	No
strip alert	Yes	No	No	No

As nouns, strip alert is a hyponym of qui vive; that is, strip alert is a word with a more specific, narrower meaning than qui vive:

Other hyponyms of qui vive include air alert, red alert.

qui vive (noun)	strip alert (noun)
condition of heightened watchfulness or preparation for action	a state of readiness for domestic defense aircraft