covering vs artifact

covering and artifact both are nouns.

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

As nouns, artifact is a hypernym of covering; that is, artifact is a word with a broader meaning than covering:

covering: an artifact that covers something else (usually to protect or shelter or conceal it)
artifact: a man-made object taken as a whole

Other hypernyms of covering include artefact.

covering (noun)	artifact (noun)
the act of protecting something by covering it	a man-made object taken as a whole
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