/'haɪnɪs; `haɪnɪs/
n [C] (usu 通常作 Highness) title used in speaking to or of a member of the royal family 殿下, 阁下（用作对皇室成员的尊称）
*His/Her/Your Royal Highness 殿下（或阁下）
* Their Royal Highnesses the Duke and Duchess of Kent 肯特公爵和公爵夫人阁下.

n[C]
Your/Her/His Highness
used to speak to or about a king, queen, prince etc