a feather in your cap
US /ə ˈfɛðər ɪn jʊər kæp/
UK /ə ˈfɛðər ɪn jʊər kæp/
1.
an achievement to be proud of
:
•
Winning that award was truly a feather in her cap.
•
Completing the marathon was a feather in his cap, even though he didn't win.
an achievement to be proud of