arrival vs appearance

arrival and appearance both are nouns.

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

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

arrival (noun)	appearance (noun)
accomplishment of an objective	the act of appearing in public view
the act of arriving at a certain place	formal attendance (in court or at a hearing) of a party in an action
someone who arrives (or has arrived)	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