Definition of coronet

• n. - An ornamental or honorary headdress, having the shape and character of a crown; particularly, a crown worn as the mark of high rank lower than sovereignty. The word is used by Shakespeare to denote also a kingly crown.
• n. - The upper part of a horse's hoof, where the horn terminates in skin.
• n. - The iron head of a tilting spear; a coronel.