appearance vs emergence

appearance and emergence both are nouns.

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

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

Other hyponyms of appearance include apparition, emersion, reappearance, return.

appearance (noun)	emergence (noun)
the act of appearing in public view	the act of coming (or going) out; becoming apparent
formal attendance (in court or at a hearing) of a party in an action	the act of emerging
pretending that something is the case in order to make a good impression	the becoming visible
outward or visible aspect of a person or thing	the gradual beginning or coming forth
a mental representation
the event of coming into sight