beret
noun
A beret is a hat that is round and flat. It is usually made of wool and it is worn on the top of your head. It is a fun way to accessorize your outfit and can be found in lots of different colors.
Example
1. She wore a navy blue beret to the party.
2. The artist had a bright yellow beret perched on her head.
3. He had to buy a new beret after his old one got ruined in the rain.