diadem

n crown worn as a sign of royal power 王冠, 冕（王权的象徵）.

dewdrop, dewlap, dewy, dewy-eyed, dexterity, dexterous (also dextrous), dexterously (also dextrously), dextrose, DG, dhoti, dhow, DHSS, di-, diabetes, diabetic, diabolic, diabolical, diabolically, diabolize, diacritic, diaeresis (also dieresis), diagnose, diagnosis, diagnostic, diagonal, diagonally, diagram, diagrammatic, diagrammatically, dial, dialect, dialectal, dialectic, dialectical, dialectically, dialectician, dialectics, dialog, dialogue, dialogue (US also dialog),