free trader vs friend

free trader and friend both are nouns.

Word	Noun	Adjective	Verb	Adverb
free trader	Yes	No	No	No
friend	Yes	No	No	No

As nouns, friend is a hypernym of free trader; that is, friend is a word with a broader meaning than free trader:

Other hypernyms of free trader include admirer, booster, champion, protagonist, supporter.

free trader (noun)	friend (noun)
an advocate of unrestricted international trade	a person you know well and regard with affection and trust
	a person with whom you are acquainted
	an associate who provides cooperation or assistance
	a person who backs a politician or a team etc.