Oscar vs accolade

Oscar and accolade both are nouns.

Word	Noun	Adjective	Verb	Adverb
Oscar	Yes	No	No	No
accolade	Yes	No	No	No

As nouns, accolade is a hypernym of Oscar; that is, accolade is a word with a broader meaning than Oscar:

Oscar: an annual award by the Academy of Motion Picture Arts and Sciences for achievements in motion picture production and performance
accolade: a tangible symbol signifying approval or distinction

Other hypernyms of Oscar include award, honor, honour, laurels.

Oscar (noun)	accolade (noun)
an annual award by the Academy of Motion Picture Arts and Sciences for achievements in motion picture production and performance	a tangible symbol signifying approval or distinction