highness

名词 highness:

1. (Your Highness or His Highness or Her Highness) title used to address a royal person
2. the condition of being high or lofty
   同义词：loftiness
3. a high degree (of amount or force etc.)

1. Ladies and gentlemen, I give you his Royal Highness, the Prince of Wales.
   女士们，先生们，请为威尔士亲王殿下乾杯。
2. His Highness Prince Charles will attend the meeting.
   查尔斯亲王殿下将出席本次会议。

high.ness

n.（名词）
The quality or condition of being high.
高，高度：高的性质或状态
Highness Used withHis, Her, or Your as a title and form of address for a prince or princess:
Highness 与His,Her 或 Your 连用，用来称呼王子（亲王）或公主（王妃）：
例句：
Her Royal Highness the Princess Margaret.
玛格丽特公主殿下