qui vive vs preparedness

qui vive and preparedness both are nouns.

Word	Noun	Adjective	Verb	Adverb
qui vive	Yes	No	No	No
preparedness	Yes	No	No	No

As nouns, preparedness is a hypernym of qui vive; that is, preparedness is a word with a broader meaning than qui vive:

qui vive: condition of heightened watchfulness or preparation for action
preparedness: the state of having been made ready or prepared for use or action (especially military action)

Other hypernyms of qui vive include preparation, readiness.

qui vive (noun)	preparedness (noun)
condition of heightened watchfulness or preparation for action	the state of having been made ready or prepared for use or action (especially military action)