a feather in your cap
US /ə ˈfɛðər ɪn jʊər kæp/
UK /ə ˈfɛðər ɪn jʊər kæp/

1.
자랑거리, 영광
an achievement to be proud of
:
•
Winning that award was truly a feather in her cap.
그 상을 받은 것은 정말 그녀의 자랑거리였다.
•
Completing the marathon was a feather in his cap, even though he didn't win.
마라톤을 완주한 것은 비록 우승하지 못했지만 그의 자랑거리였다.