meander vs watercourse

meander and watercourse both are nouns.

Word	Noun	Adjective	Verb	Adverb
meander	Yes	No	Yes	No
watercourse	Yes	No	No	No

meander (noun)	watercourse (noun)
an aimless amble on a winding course	a conduit through which water flows
a bend or curve, as in a stream or river	a natural body of running water flowing on or under the earth
	natural or artificial channel through which water flows

meander (verb)	watercourse (verb)
to move or cause to move in a sinuous, spiral, or circular course