Grand Canal vs canal

Grand Canal and canal both are nouns.

Word	Noun	Adjective	Verb	Adverb
Grand Canal	Yes	No	No	No
canal	Yes	No	Yes	No

Grand Canal (noun)	canal (noun)
an inland waterway 1000 miles long in eastern China; extends from Tianjin in the north to Hangzhou in the south	long and narrow strip of water made for boats or for irrigation
the major waterway in Venice, Italy	a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
	(astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion

Grand Canal (verb)	canal (verb)
	provide (a city) with a canal