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
Marcianus	-	Ancient Roman
Wilma	VIL-mah (German, Dutch), WIL-mah (Dutch), WIL-mə (English)	German, Dutch, English
Maja (1)	MIE-ah (German, Polish)	Croatian, Serbian, Slovene, German, Danish, Swedish, Norwegian, Polish
Rowland	['rəulənd]
MÉLine	me-LEEN	French
Annabel	AN-ə-bel (English)	English, Dutch