crossing vs watercourse

crossing and watercourse both are nouns.

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

crossing (noun)	watercourse (noun)
a voyage across a body of water (usually across the Atlantic Ocean)	a conduit through which water flows
traveling across	a natural body of running water flowing on or under the earth
(genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids	natural or artificial channel through which water flows
a path (often marked) where something (as a street or railroad) can be crossed to get from one side to the other
a junction where one street or road crosses another
a point where two lines (paths or arcs etc.) intersect
a shallow area in a stream that can be forded