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
Sadİ	-	Turkish
Yekaterina	ye-kah-tye-REE-nah, ee-kah-tee-REE-nah	Russian
Huldah	HUL-də (English)	Biblical
Magalie	-	French
Fran	FRAN (English)	Spanish, English, Croatian, Slovene
Damokles	-	Greek Mythology