application vs paving

application and paving both are nouns.

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

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

application (noun)	paving (noun)
the action of putting something into operation	the act of applying paving materials to an area
a diligent effort	the paved surface of a thoroughfare
the act of bringing something to bear; using it for a particular purpose	material used to pave an area
the work of applying something
liquid preparation having a soothing or antiseptic or medicinal action when applied to the skin
a verbal or written request for assistance or employment or admission to a school
a program that gives a computer instructions that provide the user with tools to accomplish a task