This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. An ornament, such as a rosette or knot of ribbon, usually worn on the hat as a badge.

n. A rosette worn in a hat as an office or party badge.

n. A badge, usually in the form of a rosette, or knot, and generally worn upon the hat; -- used as an indication of military or naval service, or party allegiance, and in England as a part of the livery to indicate that the wearer is the servant of a military or naval officer.

n. A clasp, button, or other fastening used to secure and hold up the cock of the hat; hence, any knot or rosette of ribbon, leather, worsted, or other material, worn on the hat.

n. an ornament (such as a knot of ribbon or a rosette) usually worn on the hat

"At the bottom of every soldier's haversack there is an old and worn tricolour cockade, which is there ready to be fetched out at a moment's notice, and will be fetched out at the mere sound of the Corsican's voice."

decoration    ornament    ornamentation   

device    black cockade    white cockade    rosette    knot   

sash    riband    epaulet    facing    rosette