Royal Highness noun
plural Royal Highnesses
plural Royal Highnesses
Learner's definition of ROYAL HIGHNESS
[count]
—
used as a title for a member of a royal family —
used with his, her, their, or your殿下（用作对王室成员的尊称，与his、her、their或your连用） -
their Royal Highnesses, the Prince and Princess of Wales威尔士亲王和王妃殿下
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Her/His Royal Highness will receive you now.殿下现在要接见你。
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Thank you, your Royal Highness.谢谢您，殿下。