summit meeting vs meeting

summit meeting and meeting both are nouns.

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

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

Other hypernyms of summit meeting include group meeting.

summit meeting (noun)	meeting (noun)
a meeting of heads of governments	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)