materialization vs appearance

materialization and appearance both are nouns.

Word	Noun	Adjective	Verb	Adverb
materialization	Yes	No	No	No
appearance	Yes	No	No	No

As nouns, appearance is a hypernym of materialization; that is, appearance is a word with a broader meaning than materialization:

materialization (noun)	appearance (noun)
an appearance in bodily form (as of a disembodied spirit)	the act of appearing in public view
something that comes into existence as a result	formal attendance (in court or at a hearing) of a party in an action
the process of coming into being; becoming reality	pretending that something is the case in order to make a good impression
	outward or visible aspect of a person or thing
	a mental representation
	the event of coming into sight