paving vs sidewalk

paving and sidewalk both are nouns.

Word	Noun	Adjective	Verb	Adverb
paving	Yes	No	No	No
sidewalk	Yes	No	No	No

paving (noun)	sidewalk (noun)
the act of applying paving materials to an area	walk consisting of a paved area for pedestrians; usually beside a street or roadway
the paved surface of a thoroughfare
material used to pave an area