apparition vs semblance

apparition and semblance both are nouns.

Word	Noun	Adjective	Verb	Adverb
apparition	Yes	No	No	No
semblance	Yes	No	No	No

As nouns, semblance is a hypernym of apparition; that is, semblance is a word with a broader meaning than apparition:

Other hypernyms of apparition include illusion.

apparition (noun)	semblance (noun)
an act of appearing or becoming visible unexpectedly	picture consisting of a graphic image of a person or thing
something existing in perception only	an outward or token appearance or form that is deliberately misleading
the appearance of a ghostlike figure	an erroneous mental representation
a ghostly appearing figure