socialising vs meeting

socialising and meeting both are nouns.

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

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

Other hypernyms of socialising include coming together, congress.

socialising (noun)	meeting (noun)
the act of meeting for social purposes	the social act of assembling for some common purpose
	the act of joining together as one
	a casual or unexpected convergence
	a formally arranged gathering
	a small informal social gathering
	a place where things merge or flow together (especially rivers)