CAT scan vs ikon

CAT scan and ikon both are nouns.

Word	Noun	Adjective	Verb	Adverb
CAT scan	Yes	No	No	No
ikon	Yes	No	No	No

As nouns, ikon is a hypernym of CAT scan; that is, ikon is a word with a broader meaning than CAT scan:

CAT scan: an image produced by scanning
ikon: a visual representation (of an object or scene or person or abstraction) produced on a surface

Other hypernyms of CAT scan include icon, image, picture.

CAT scan (noun)	ikon (noun)
an image produced by scanning	a visual representation (of an object or scene or person or abstraction) produced on a surface
	a conventional religious painting in oil on a small wooden panel; venerated in the Eastern Church