Rn

1 of 3

symbol

radon

RN

2 of 3

noun

RN

3 of 3

abbreviation

Royal Navy

Examples of Rn in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Kat Marie Alvarez, RN, MBA Founder & CEO, Katalyst & Co. Kat Marie Alvarez, Forbes.com, 26 June 2026 Additional reporting by Chaunie Brusie, BSN, RN. Parents, 23 June 2026 The nurse studied for a couple of months at Noreus’ school in Plantation before passing the state RN licensing exam in early 2021. Jay Weaver, Miami Herald, 16 June 2026 The letter writer should discuss this with the cousin and the cousin’s medical team. – RN Dear RN: This is a good option for the letter writer to look into. Eric Thomas, Sun Sentinel, 11 June 2026 See All Example Sentences for Rn

Word History

First Known Use

Noun

1903, in the meaning defined above

Time Traveler
The first known use of Rn was in 1903

Browse Nearby Words

Cite this Entry

“Rn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rn. Accessed 30 Jun. 2026.

Kids Definition

RN

noun
ˌär-ˈen

Medical Definition

Rn

1 of 2 symbol
radon

RN

2 of 2 noun

More from Merriam-Webster on Rn

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster