feather in (one's) cap

An accomplishment or achievement that one takes pride in. If this clinical trial is successful, it will be a real feather in her cap. I can't wait until I'm named valedictorian— it's such a feather in my cap!

Common Names:

Name	Pronounced	Usage
Jodocus	yo-DO-kəs (Dutch)	Dutch (Archaic), Ancient Celtic (Latinized)
Kord	KAWRT	German
Severo	se-VE-ro	Italian, Spanish
Clayton	['kleitn]
Oda	O-dah (German)	German, Ancient Germanic
Ashley	['æʃli]