The term 'Crown of ___' can be filled in with three different words: ENAMEL (6 letters), TIARA (5 letters), and PATE (4 letters). ENAMEL is a type of glass-like material that is used to decorate metal objects, such as jewelry. A TIARA is a type of headpiece that is often worn by royalty or brides. A PATE is a type of hat that is usually made of velvet or silk. All three words can be used to complete the phrase 'Crown of ___', and each word has its own unique meaning and connotation.