Bronze Star vs decoration

Bronze Star and decoration both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bronze Star	Yes	No	No	No
decoration	Yes	No	No	No

As nouns, decoration is a hypernym of Bronze Star; that is, decoration is a word with a broader meaning than Bronze Star:

Bronze Star: a United States military decoration awarded for meritorious service (except in aerial flight)
decoration: an award for winning a championship or commemorating some other event

Other hypernyms of Bronze Star include laurel wreath, medal, medallion, palm, ribbon.

Bronze Star (noun)	decoration (noun)
a United States military decoration awarded for meritorious service (except in aerial flight)	the act of decorating something (in the hope of making it more attractive)
	something used to beautify
	an award for winning a championship or commemorating some other event