a feather in someone's cap
a 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!
See also: cap, feather
Farlex Dictionary of Idioms.
a feather in someone's cap
If you describe an achievement as a feather in someone's cap, you mean that they have done very well and people will admire them. It was a definite feather in his cap to have attended such a famous university. Hauptmann's arrest is a feather in the cap of the New Jersey police. Note: Traditionally, Native American warriors added feathers to their headdresses as a sign of bravery in battle. Medieval knights in England also wore feathers in their helmets as a sign of their bravery.
See also: cap, feather
Collins COBUILD Idioms Dictionary, 3rd ed.
- a feather in (one's) cap
- feather in (one's) cap
- feather in cap
- feather in one's cap, a
- a feather in your cap
- decorate
- decorate (someone) for (something)
- decorate for
- fur and feather
- be a credit to (someone or something)