reunification vs jointure

reunification and jointure both are nouns.

Word	Noun	Adjective	Verb	Adverb
reunification	Yes	No	No	No
jointure	Yes	No	No	No

As nouns, jointure is a hypernym of reunification; that is, jointure is a word with a broader meaning than reunification:

Other hypernyms of reunification include conjugation, unification, union, uniting.

reunification (noun)	jointure (noun)
the act of coming together again	the act of making or becoming a single unit
	(law) an estate secured to a prospective wife as a marriage settlement in lieu of a dower