covering vs waxing

covering and waxing both are nouns.

Word	Noun	Adjective	Verb	Adverb
covering	Yes	No	No	No
waxing	Yes	Yes	No	No

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

covering (noun)	waxing (noun)
the act of protecting something by covering it	the application of wax to a surface
the work of applying something	a gradual increase in magnitude or extent
the act of concealing the existence of something by obstructing the view of it
an artifact that covers something else (usually to protect or shelter or conceal it)
a natural object that covers or envelops

covering (adjective)	waxing (adjective)
	(of the moon) pertaining to the period during which the visible surface of the moon increases