meeting vs convergency

meeting and convergency both are nouns.

Word	Noun	Adjective	Verb	Adverb
meeting	Yes	No	No	No
convergency	Yes	No	No	No

As nouns, convergency is a hypernym of meeting; that is, convergency is a word with a broader meaning than meeting:

Other hypernyms of meeting include convergence, converging.

meeting (noun)	convergency (noun)
the social act of assembling for some common purpose	the act of converging (coming closer)
the act of joining together as one	the approach of an infinite series to a finite limit
a casual or unexpected convergence
a formally arranged gathering
a small informal social gathering
a place where things merge or flow together (especially rivers)