unify vs coalesce

unify and coalesce both are verbs.

Word	Noun	Adjective	Verb	Adverb
unify	No	No	Yes	No
coalesce	No	No	Yes	No

As verbs, coalesce is a hyponym of unify; that is, coalesce is a word with a more specific, narrower meaning than unify:

unify (verb)	coalesce (verb)
become one	mix together different elements
join or combine	fuse or cause to grow together
to bring or combine together or with something else
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