diadem
Pronunciation:
/ˈdaɪ.ə.dəm/noun
Definitions
An ornamental headband worn as a badge of royalty.
A crown.
Regal power; sovereignty; empire—considered as symbolized by the crown.
An arch rising from the rim of a crown (rarely also of a coronet), and uniting with others over its centre.
verb
Definitions
To adorn with a diadem; to crown.