highness

/ˈhaɪnəs/
noun
  1. A title used to address or refer to a member of a royal family, such as a prince, princess, king, or queen.
    • Her Royal Highness will attend the ceremony tomorrow.
    • Please address the letter to Her Highness the Duchess.
    • The ambassador bowed before His Highness the Prince.
  2. The quality or state of being high; great height or elevation.
    • We admired the highness of the cathedral's spire.
    • The highness of the ceiling gave the room a grand feeling.
    • The highness of the mountain made the climb very difficult.
Synonyms
What does "highness" mean? | whatsthatwordmean | whatsthatwordmean