meeting vs river

meeting and river both are nouns.

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

meeting (noun)	river (noun)
the social act of assembling for some common purpose	a large natural stream of water (larger than a creek)
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)