straight-line

adjective

ˈstrāt-ˈlīn 

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

Standard tests, however, don’t account for rotational impacts, when your head hits at an angle, which is more common than a straight-line impact during a wipeout. —Adam Trenkamp, Outside, 16 Feb. 2026

One of the most damaging habits in investing is straight-line thinking. —Steve Booren, Denver Post, 15 Feb. 2026

In seasons past, Slafkovský’s ability to maneuver in tight was a strength, but his overall straight-line speed wasn’t as remarkable. —Shayna Goldman, New York Times, 12 Feb. 2026

Damaging straight-line winds and heavy downpours are expected to pose the main threats. —Brandi D. Addison, IndyStar, 3 Feb. 2026

Word History

First Known Use

1772, in the meaning defined at sense 4

Rhymes for straight-line

• affine
• airline
• align
• aline
• assign
• baseline
• beamline
• benign
• bloodline
• bovine
• byline
• canine

Legal Definition

straight-line

adjective

: marked by equal payments over a given term

using the straight-line method of depreciation