decker vs artifact

decker and artifact both are nouns.

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

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

decker: (often used in combinations) something constructed with multiple levels
artifact: a man-made object taken as a whole

Other hypernyms of decker include artefact.

decker (noun)	artifact (noun)
(often used in combinations) something constructed with multiple levels	a man-made object taken as a whole