Royal Highness

American  

noun

1. (in England)

   1. a title used prior to 1917 and designating a brother, sister, child, grandchild, aunt, or uncle belonging to the male line of the royal family.

   2. a title used since 1917 and designating a child or grandchild of the sovereign.

   3. any person given this title by the Crown.

2. (in other countries) a person who is a member of a royal family.

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Royal Highness British  

noun

1. a title of honour used in addressing or referring to a member of a royal family

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Etymology

Origin of Royal Highness

First recorded in 1645–55

Example Sentences

From Home Goods to His Royal Highness King Charles lll’s purveyor, 15 places Los Angeles designers say they shop for rugs.

From Los Angeles Times • Apr. 3, 2026

How Virginia Giuffre’s accusations of a decade ago finally brought His Royal Highness Prince Andrew, Duke of York, down to simply Andrew.

From Slate • Nov. 5, 2025

If Prince Andrew can be stripped of his honors and title with a few keystrokes, perhaps I can become Her Royal Highness Princess Brenda, or at least Duchess of something, with the same ease.

From The Wall Street Journal • Nov. 2, 2025

When Prince Harry and Meghan stepped down as working royals there was an agreement to stop using HRH, which stands for Her/His Royal Highness, but they still hold the titles.

From BBC • Apr. 29, 2025

We liked to never get Her Royal Highness Princess Louise ready and downstairs into her carriage.

From "Secrets at Sea" by Richard Peck