redline

1 of 2

noun

red·​line ˈred-ˈlīn How to pronounce redline (audio)
: a recommended safety limit : the fastest, farthest, or highest point or degree considered safe
also : the red line which marks this point on a gauge

redline

2 of 2

verb

red·​line ˈred-ˌlīn How to pronounce redline (audio) -ˈlīn How to pronounce redline (audio)
redlined; redlining; redlines

intransitive verb

: to withhold home-loan funds or insurance from neighborhoods considered poor economic risks

transitive verb

: to discriminate against in housing or insurance

Examples of redline 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.
Noun
The neighbors won’t appreciate the grumbling exhaust, though the engine doesn’t rev particularly high for a V12, given the 6,000-rpm redline. Michael Teo Van Runkle, Forbes.com, 29 June 2025 Where to draw the redlines and how best to counter Chinese military power in the region should be—and are already being—debated. Jennifer Lind, Foreign Affairs, 24 June 2025
Verb
Today, people of color are far more likely to live in poor neighborhoods that were redlined in the past, meaning that loans and other forms of credit were withheld from those neighborhoods. Eva Wen, jsonline.com, 3 July 2025 As climate risks escalate, insurers are withdrawing from high-risk zones and redlining regions. Felicia Jackson, Forbes.com, 23 June 2025 See All Example Sentences for redline

Word History

First Known Use

Noun

1952, in the meaning defined above

Verb

1968, in the meaning defined at intransitive sense

Time Traveler
The first known use of redline was in 1952

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Cite this Entry

“Redline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/redline. Accessed 14 Jul. 2025.

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