entrance fee vs admission fee

entrance fee and admission fee both are nouns.

Word	Noun	Adjective	Verb	Adverb
entrance fee	Yes	No	No	No
admission fee	Yes	No	No	No

As nouns, entrance fee and admission fee are synonyms defined as:

Other synonyms of entrance fee include admission, admission charge, admission price, entrance money, price of admission.

entrance fee (noun)	admission fee (noun)
the fee charged for admission	the fee charged for admission