The term 'They're Fit for a King' can be summarized by two crossword solutions: REGALIA and coronation robes. REGALIA is a collective term for the special clothing, insignia, and other items worn by royalty during formal occasions. Coronation robes are the ceremonial robes worn by a monarch during their coronation ceremony. Both REGALIA and coronation robes are symbols of power and authority, and are typically made of luxurious fabrics and adorned with jewels and other decorations.