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.
In addition to the straight-line winds, multiple tornadoes were confirmed, including two that crossed into Lake County from Illinois. Dinah Voyles Pulver, USA Today, 24 Aug. 2026 The extent of the damage in this area is consistent with straight-line thunderstorm winds between 70 and 80 mph, the weather service said. Kansas City Star, 24 Aug. 2026 The biggest concern will be strong straight-line winds, followed by a chance for large hail. Ron Smiley, CBS News, 21 Aug. 2026 Anticipating where that will come can have a big impact not only on straight-line speed, but braking points and corner speeds for the drivers. Luke Smith, New York Times, 20 Aug. 2026 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 2 Sep. 2026.

Legal Definition

straight-line

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