umbrella vs unification

umbrella and unification both are nouns.

Word	Noun	Adjective	Verb	Adverb
umbrella	Yes	Yes	No	No
unification	Yes	No	No	No

As nouns, unification is a hypernym of umbrella; that is, unification is a word with a broader meaning than umbrella:

Other hypernyms of umbrella include conjugation, jointure, union, uniting.

umbrella (noun)	unification (noun)
a formation of military planes maintained over ground operations or targets	the act of making or becoming a single unit
having the function of uniting a group of similar things	an occurrence that involves the production of a union
a lightweight handheld collapsible canopy	the state of being joined or united or linked

umbrella (adjective)	unification (adjective)
covering or applying simultaneously to a number of similar items or elements or groups