Definitions

length

[lengkth, length, lenth] / lɛŋkθ, lɛŋθ, lɛnθ /

NOUN

extent of object, distance, time

Synonyms

STRONGEST

breadth diameter dimension duration height limit magnitude mileage period piece portion quantity radius range section segment space span stretch term width

STRONG

compass continuance elongation endlessness expanse expansion extensiveness interval lastingness lengthiness linearity loftiness longitude longness measure orbit panorama purview reach realm remoteness season spaciousness stride tallness unit year

WEAK

protractedness ranginess

Antonyms

STRONGEST

extreme unimportance whole

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.

While in space, the crew spoke of the surreal sights of our dusty, rugged natural satellite, appearing about the size of a bowling ball at arm’s length, suspended in the nothingness.

From Los Angeles Times • Apr. 10, 2026

With this method, a device called an interrogator shoots laser pulses down the length of a cable, and some of the light bounces back.

From The Wall Street Journal • Apr. 9, 2026

Maguire said, smiling, as he spoke at length about his career so far and hopes for the future to journalists at the club's training camp in Maynooth, 20 miles outside Dublin.

From BBC • Apr. 9, 2026

The average length of unemployment is now nearly six months, according to March data from the Bureau of Labor Statistics.

From MarketWatch • Apr. 9, 2026

Buzz’s flashlight now lit as much as fifteen feet, about the length of a small SUV, in front of them.

From "Mountain of Fire" by Rebecca E. F. Barone

Vocabulary lists containing length

Word Generation Science - Measurement

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!

Beowulf vocabulary

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!

Geometry - Introductory

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!