mix in vs merge

mix in and merge both are verbs.

Word	Noun	Adjective	Verb	Adverb
mix in	No	No	Yes	No
merge	No	No	Yes	No

As verbs, merge is a hypernym of mix in; that is, merge is a word with a broader meaning than mix in:

Other hypernyms of mix in include blend, coalesce, combine, commingle, conflate, flux, fuse, immix, meld, mix.

mix in (verb)	merge (verb)
cause (something) to be mixed with (something else)	become one
add as an additional element or part	mix together different elements
	join or combine