admission vs admittance

admission and admittance both are nouns.

Word	Noun	Adjective	Verb	Adverb
admission	Yes	No	No	No
admittance	Yes	No	No	No

As nouns, admission and admittance are synonyms defined as:

As nouns, admission and admittance are synonyms defined as:

Other synonyms of admission include access, accession, entree.

admission (noun)	admittance (noun)
the act of admitting someone to enter	the act of admitting someone to enter
the right to enter	the right to enter
an acknowledgment of the truth of something
the fee charged for admission