mall vs walkway

mall and walkway both are nouns.

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

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

Other hypernyms of mall include paseo, walk.

mall (noun)	walkway (noun)
a public area set aside as a pedestrian walk	a path set aside for walking
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