blazer vs sport coat

blazer and sport coat both are nouns.

Word	Noun	Adjective	Verb	Adverb
blazer	Yes	No	No	No
sport coat	Yes	No	No	No

As nouns, blazer and sport coat are synonyms defined as:

blazer and sport coat: lightweight single-breasted jacket; often striped in the colors of a club or school

Other synonyms of blazer include sport jacket, sports coat, sports jacket.

blazer (noun)	sport coat (noun)
lightweight single-breasted jacket; often striped in the colors of a club or school	lightweight single-breasted jacket; often striped in the colors of a club or school