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
Matheus	-	Portuguese (Brazilian)
GÜLİStan	-	Turkish
Werther	-	German
Nikhil	-	Indian, Hindi, Marathi, Gujarati, Odia, Telugu, Malayalam, Kannada, Tamil
Virgie	VUR-jee	English
Allison	AL-i-sən	English