convergence vs merging

convergence and merging both are nouns.

Word	Noun	Adjective	Verb	Adverb
convergence	Yes	No	No	No
merging	Yes	Yes	No	No

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

Other hyponyms of convergence include coming together, meeting.

convergence (noun)	merging (noun)
the act of converging (coming closer)	a flowing together
the approach of an infinite series to a finite limit	the act of joining together as one
a representation of common ground between theories or phenomena
the occurrence of two or more things coming together

convergence (adjective)	merging (adjective)
	flowing together