unify vs get together

unify is not a noun while get together is a noun.

Word	Noun	Adjective	Verb	Adverb
unify	No	No	Yes	No
get together	Yes	No	Yes	No

As verbs, get together is a hypernym of unify; that is, get together is a word with a broader meaning than unify:

Other hypernyms of unify include fall in, join.

unify (noun)	get together (noun)
	a small informal social gathering

unify (verb)	get together (verb)
become one	get together socially or for a specific purpose
join or combine	become part of; become a member of a group or organization
to bring or combine together or with something else	get people together
act in concert or unite in a common purpose or belief
bring together for a common purpose or action or ideology or in a shared situation