1
: that moves in or allows movement in only one direction
a one-way street
2
: one-sided, unilateral
a one-way conversation
3
: that functions in only one of two or more ways

Examples of one-way 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.
Flights will run once per day on Monday, Thursday, Friday, and Sunday, and one-way fares begin at $259. Katie Nadworny, Travel + Leisure, 7 Apr. 2025 This one-way hashing algorithm secures blockchain integrity and prevents tampering. Yuval Boger, Forbes.com, 4 Apr. 2025 The Charlotte Observer used Google Flights on Tuesday, March 25, to check for nonstop, one-way flights leaving from CLT Airport during April. Evan Moore, Charlotte Observer, 3 Apr. 2025 For example, on select routes, one-way business-class award flights from the U.S. to Spain on Iberia cost 34,000 miles on off-peak dates and 50,000 points on peak dates. Jason Stauffer, CNBC, 3 Apr. 2025 See All Example Sentences for one-way

Word History

First Known Use

1824, in the meaning defined at sense 1

Time Traveler
The first known use of one-way was in 1824

Cite this Entry

“One-way.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/one-way. Accessed 13 Apr. 2025.

Kids Definition

one-way

adjective
1
: moving or allowing movement in one direction only
2

More from Merriam-Webster on one-way

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