hiding vs covering

hiding and covering both are nouns.

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

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

hiding: the activity of keeping something secret
covering: the act of concealing the existence of something by obstructing the view of it

hiding (noun)	covering (noun)
the activity of keeping something secret	the act of protecting something by covering it
the state of being hidden	the work of applying something
	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