walkway vs mall

walkway and mall both are nouns.

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

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

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

walkway (noun)	mall (noun)
a path set aside for walking	a public area set aside as a pedestrian walk
	mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace