walkway vs promenade

walkway and promenade both are nouns.

Word	Noun	Adjective	Verb	Adverb
walkway	Yes	No	No	No
promenade	Yes	No	Yes	No

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

Other hyponyms of walkway include ambulatory, boardwalk, catwalk, flagging, mall, pavement, sidewalk, skywalk.

walkway (noun)	promenade (noun)
a path set aside for walking	a leisurely walk (usually in some public place)
	a march of all the guests at the opening of a formal dance
	a square dance figure; couples march counterclockwise in a circle
	a public area set aside as a pedestrian walk
	a formal ball held for a school class toward the end of the academic year

walkway (verb)	promenade (verb)
	take a leisurely walk
	march in a procession in a public place