blazer
n. countablen. a type of jacket that looks like a suit coat but is more casual. You often wear it for school uniforms or smart-casual events.
n. a lightweight jacket resembling a suit coat but typically cut more casually and often featuring metal buttons. Frequently associated with school uniforms, sports clubs, or business-casual attire.
He wore a navy blue blazer to the wedding.
The private school requires all students to wear a dark green blazer with the school crest on the pocket.
While a full suit might be too formal for the evening reception, a well-tailored blazer paired with chinos strikes the perfect balance for a modern professional setting.
From blaze + -er. Originates from the 'blazing' scarlet jackets worn by members of Lady Margaret Boat Club, the rowing club associated with St. John's College, Cambridge. Compare Old English blæsere, blasere (“burner, incendiary”, literally “blazer”).
Often paired with the verb 'wear' or 'put on'.