covering vs painting

covering and painting both are nouns.

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

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

covering (noun)	painting (noun)
the act of protecting something by covering it	creating a picture with paints
the work of applying something	the occupation of a house painter
the act of concealing the existence of something by obstructing the view of it	the act of applying paint to a surface
an artifact that covers something else (usually to protect or shelter or conceal it)	graphic art consisting of an artistic composition made by applying paints to a surface
a natural object that covers or envelops