Rn

1 of 3

symbol

radon

RN

2 of 3

noun

ˌär-ˈen 

: registered nurse

RN

3 of 3

abbreviation

Royal Navy

Examples of Rn in a Sentence

Recent Examples on the Web

Noun

This pair of designer, baggy denim is 40 percent off RN and thus, at the top of my wish list. — Essence Wiley, InStyle, 9 Aug. 2026

Lingering problems from inflation, immigration, and an aging population have strewn disillusionment with France’s traditional parties and boosted RN’s chances, giving the party its best shot yet. — Brady Knox, The Washington Examiner, 8 July 2026

Le ​Pen and her National Rally (RN) party have been leading in the polls. — Melissa Bell, CNN Money, 7 July 2026

Take Heatwaves Seriously Sun Jones, DNP, RN, takes heatwaves seriously and thinks others should, too. — Caroline Lubinsky, Martha Stewart, 30 June 2026

Word History

First Known Use

Noun

1903, in the meaning defined above

Kids Definition

RN

noun

ˌär-ˈen

: registered nurse

Medical Definition

Rn

1 of 2 symbol

radon

RN

2 of 2 noun

ˈär-ˈen 

: registered nurse