promenade vs walkway

promenade and walkway both are nouns.

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

As nouns, walkway is a hypernym of promenade; that is, walkway is a word with a broader meaning than promenade:

Other hypernyms of promenade include paseo, walk.

promenade (noun)	walkway (noun)
a leisurely walk (usually in some public place)	a path set aside for walking
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

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