jointure vs coalition

jointure and coalition both are nouns.

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

As nouns, coalition is a hyponym of jointure; that is, coalition is a word with a more specific, narrower meaning than jointure:

jointure: the act of making or becoming a single unit
coalition: the union of diverse things into one body or form or group; the growing together of parts

jointure (noun)	coalition (noun)
the act of making or becoming a single unit	the union of diverse things into one body or form or group; the growing together of parts
(law) an estate secured to a prospective wife as a marriage settlement in lieu of a dower	an organization of people (or countries) involved in a pact or treaty
	the state of being combined into one body