canopy vs porte-cochere

canopy and porte-cochere both are nouns.

Word	Noun	Adjective	Verb	Adverb
canopy	Yes	No	Yes	No
porte-cochere	Yes	No	No	No

As nouns, porte-cochere is a hyponym of canopy; that is, porte-cochere is a word with a more specific, narrower meaning than canopy:

canopy: a covering (usually of cloth) that serves as a roof to shelter an area from the weather
porte-cochere: canopy extending out from a building entrance to shelter those getting in and out of vehicles

Other hyponyms of canopy include awning, sunblind, sunshade, baldachin, marquee, marquise, tester, umbrella.

canopy (noun)	porte-cochere (noun)
a covering (usually of cloth) that serves as a roof to shelter an area from the weather	canopy extending out from a building entrance to shelter those getting in and out of vehicles
the umbrellalike part of a parachute that fills with air	a carriage entrance passing through a building to an enclosed courtyard
the transparent covering of an aircraft cockpit

canopy (verb)	porte-cochere (verb)
cover with a canopy