watercourse vs canal

watercourse and canal both are nouns.

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

As nouns, canal is a hyponym of watercourse; that is, canal is a word with a more specific, narrower meaning than watercourse:

Other hyponyms of watercourse include flume, headrace, tailrace.

watercourse (noun)	canal (noun)
a conduit through which water flows	long and narrow strip of water made for boats or for irrigation
a natural body of running water flowing on or under the earth	a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
natural or artificial channel through which water flows	(astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion

watercourse (verb)	canal (verb)
	provide (a city) with a canal