gold medal vs trophy

gold medal and trophy both are nouns.

Word	Noun	Adjective	Verb	Adverb
gold medal	Yes	No	No	No
trophy	Yes	No	No	No

As nouns, trophy is a hypernym of gold medal; that is, trophy is a word with a broader meaning than gold medal:

gold medal: a trophy made of gold (or having the appearance of gold) that is usually awarded for winning first place in a competition
trophy: something given as a token of victory

Other hypernyms of gold medal include prize.

gold medal (noun)	trophy (noun)
a trophy made of gold (or having the appearance of gold) that is usually awarded for winning first place in a competition	something given as a token of victory
	an award for success in war or hunting