entrance fee vs fee

entrance fee and fee both are nouns.

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

As nouns, fee is a hypernym of entrance fee; that is, fee is a word with a broader meaning than entrance fee:

entrance fee (noun)	fee (noun)
the fee charged for admission	a fixed charge for a privilege or for professional services
	an interest in land capable of being inherited

entrance fee (verb)	fee (verb)
	give a tip or gratuity to in return for a service, beyond the compensation agreed on