trophy vs silver medal

trophy and silver medal both are nouns.

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

As nouns, silver medal is a hyponym of trophy; that is, silver medal is a word with a more specific, narrower meaning than trophy:

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

Other hyponyms of trophy include apple of discord, booby prize, bronze medal, cup, loving cup, gold medal, silver.

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