Wiktionary
n. (context fashion English) An Irish beret, formerly worn by peasants, later also adopted for army use.
Wikipedia
The caubeen is an Irish beret, formerly worn by peasants. It has been adopted as the head dress of Irish regiments of Commonwealth armies.
Usage examples of "caubeen".
A tall caubeen was set on the back of his head, with a sprig of green shamrock in the band.
I say, Darby scrooged his caubeen down on his head, stuck his fingers in his two ears, and making one grand rush through the door, bolted as fast as his legs could carry him down the road toward the Sleive-na-mon Mountains.
He stooped and limped very much, and when he took off his black caubeen, the sharp gleam of his white hair seemed to comment coldly on those infirmities.
This was his fancy for adorning the band of his broad-brimmed caubeen with a garnish of feathers and flowers.
Herself had espied him a bit down the road, and was standing at the door to receive him with his discarded caubeen in her hand.
Now and then he sees the Irishman of the stage, clad in the short swallow-tailed coat with pocket-flaps, the corduroy breeches, the blue worsted stockings and misshapen caubeen, made familiar by a thousand novels and plays.
A tall caubeen was set on the back of his head, with a sprig of green shamrock in the band.
I say, Darby scrooged his caubeen down on his head, stuck his fingers in his two ears, and making one grand rush through the door, bolted as fast as his legs could carry him down the road toward the Sleive-na-mon Mountains.