board meeting vs meeting

board meeting and meeting both are nouns.

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

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

Other hypernyms of board meeting include group meeting.

board meeting (noun)	meeting (noun)
a meeting for administrative 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)