entrance money vs price of admission

entrance money and price of admission both are nouns.

Word	Noun	Adjective	Verb	Adverb
entrance money	Yes	No	No	No
price of admission	Yes	No	No	No

As nouns, entrance money and price of admission are synonyms defined as:

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

entrance money (noun)	price of admission (noun)
the fee charged for admission	the fee charged for admission