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1
: being a mechanical linkage or equivalent device designed to produce or copy motion in a straight line
2
: having the principal parts arranged in a straight line
3
: marked by a uniform spread and especially in equal segments over a given term
straight-line amortization
straight-line depreciation
4
: occurring, measured, or made in or along a straight line
straight-line motion
straight-line extrapolation

Examples of straight-line 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.
That’s why most projects afterward focused more on straight-line folding. Georgina Jedikovska, Interesting Engineering, 6 Dec. 2025 The set has an oversized fit that’s far from slouchy, unique seam detailing, and a straight-line design that looks super polished. Clara McMahon, PEOPLE, 5 Dec. 2025 Ultimately, 1970 was the most exuberant model year for the breed of automobiles whose power and tire-smoking, straight-line performance would not be revived by American manufacturers for more than four decades. Bryan Hood, Robb Report, 25 Nov. 2025 Dybantsa is the most physically dominant, with the ability to draw fouls at will with his straight-line slashing. Sam Vecenie, New York Times, 3 Nov. 2025 See All Example Sentences for straight-line

Word History

First Known Use

1772, in the meaning defined at sense 4

Time Traveler
The first known use of straight-line was in 1772

Browse Nearby Words

Cite this Entry

“Straight-line.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/straight-line. Accessed 10 Dec. 2025.

Legal Definition

straight-line

adjective
: marked by equal payments over a given term
using the straight-line method of depreciation
Last Updated: - Updated example sentences
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