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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.

The display of the biggest iPhone now is more than double the diagonal length of the original.

From The Wall Street Journal • Mar. 31, 2026

The tax on private jet flights will rise by 50% to between £142 and £1,141, depending on the length of the flight.

From BBC • Mar. 31, 2026

"What is surprising is the length of this event and, especially in Asia, the crisis that we have now with energy."

From Barron's • Mar. 31, 2026

Depending on the length of the disruption, those higher helium prices also have the potential to create higher prices for products that helium is used to create, like semiconductors.

From Salon • Mar. 30, 2026

Books were spread out along the entire length, which took her by surprise.

From "Night Owls" by A.R. Vishny

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.