legal fee vs refresher

legal fee and refresher both are nouns.

Word	Noun	Adjective	Verb	Adverb
legal fee	Yes	No	No	No
refresher	Yes	No	No	No

As nouns, refresher is a hyponym of legal fee; that is, refresher is a word with a more specific, narrower meaning than legal fee:

legal fee: a fee paid for legal service
refresher: a fee (in addition to that marked on the brief) paid to counsel in a case that lasts more than one day

legal fee (noun)	refresher (noun)
a fee paid for legal service	a course that reviews and updates a topic for those who have not kept abreast of developments
	a drink that refreshes
	a fee (in addition to that marked on the brief) paid to counsel in a case that lasts more than one day