radius

[rey-dee-uhs] / ˈreɪ di əs /

NOUN

range, sweep

Synonyms

STRONG

ambit boundary compass expanse extension extent interval limit orbit purview reach semidiameter space span spoke

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

When prices started to spike, Tabacnic narrowed her dating radius.

From MarketWatch • Jun. 3, 2026

For the Sun, this radius is estimated to extend about 400 light years.

From Science Daily • Apr. 24, 2026

Newby asked Farooq about the potential radius of an explosion and managed to persuade him to move away from the building's entrance.

From BBC • Mar. 24, 2026

Over the weekend, however, authorities slapped a month-long ban on any demonstrations, marches, banners or speeches within a one-kilometre radius of the facility.

From Barron's • Mar. 9, 2026

Clouds of water vapor swirled around me, winds so powerful they buffeted Hyperion and flattened the grass in a twenty-yard radius.

From "The Last Olympian" by Rick Riordan

Vocabulary lists containing radius

Pi Day Vocabulary

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

The ACT Math Test: Geometry, List 1

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Dear Martin

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!