red·​line | \ ˈred-ˈlīn How to pronounce redline (audio) \

Definition of redline

 (Entry 1 of 2)

: 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


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

Definition of redline (Entry 2 of 2)

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: Noun The engine weighs a claimed 392 pounds (192 pounds less than the F1's BMW engine), makes 654 horsepower, and has a 12,100-rpm redline. Mike Duff, Car and Driver, "McLaren F1—Inspired Gordon Murray T.50 Revs to 12,100 RPM, Weighs Only 2174 Pounds," 4 Aug. 2020 Without the muzzle of turbos, the Lambo's big V-10 is one of the best noisemakers in the supercar world, moaning below 4000 rpm, howling from 4000 to 7000 rpm, and then screaming for the heavens up to its 8500-rpm redline. Scott Oldham, Car and Driver, "2020 Lamborghini Huracán Evo RWD Trades Traction for Entertainment," 10 Sep. 2020 Its keening climb to the redline is an orchestra of solid-lifter clatter, half-civilized exhaust bark, and the vigorous snorting of air through one hungry venturi. Don Sherman, Car and Driver, "Tested: 1962 Chevrolet Corvette vs 1982 Chevrolet Corvette," 31 Aug. 2020 Get 25 - 60% off select home, kitchen, bed, and bath, including: Until July 6, save up to 40% off redline items. Amanda Garrity, Good Housekeeping, "The Best July 4th Furniture and Home Sales to Shop in 2020," 4 July 2020 Does the actual proposal released just this month and now barreling toward approval – a 60-page redline of the environmental impact study rules – achieve the right balance? The Denver Post Editorial Board, The Denver Post, "Editorial: The environmental review process is broken, but Trump’s plan goes too far," 12 Feb. 2020 The ergonomics created a new high mark, but nothing with a license plate could come close to replicating the F1 fantasies conjured by the Modena's 3.6-liter climbing to its 8500-rpm redline. Car and Driver, "The Greatest Cars of All Time: The Nineties," 3 July 2020 This is possible through a revision of the powertrain calibration, which increases the redline from 6300 to 6400 rpm. Maxwell B. Mortimer, Car and Driver, "807-HP Dodge Challenger SRT Super Stock Is Made for the Drag Strip," 2 July 2020 The engine will produce 621 horsepower at 7500 rpm, 500 revs short of the 8000-rpm redline. David Beard, Car and Driver, "Maserati Unveils 621-HP V-6 for the Upcoming MC20 Sports Coupe," 2 July 2020 Recent Examples on the Web: Verb The 20th century brought redlining and the destruction of black neighborhoods. Jennifer Szalai, New York Times, "Rivers Merge in St. Louis. So Do Racism, Violence and Exclusion.," 6 May 2020 The lasting impact of redlining IU researchers and Bennett both note that homeownership has traditionally been a path to wealth creation for middle-class Americans. Alexandria Burris, Indianapolis Star, "Home values in black neighborhoods $41,000 lower than Marion County as whole, study says," 24 Feb. 2020 That gap, which is at least partly caused by redlining and racist lending policies, reinforces racial wealth disparities and impedes social mobility. TheWeek, "America's housing crisis," 8 Mar. 2020 Asked by the moderator about that comment, Bloomberg called the idea that redlining caused the crisis exactly wrong. John Fritze, USA TODAY, "Bloomberg put on defensive during combative two-hour Democratic debate," 20 Feb. 2020 And the new engine, in manual-transmission R guise, is a blast, exploding above 6000 rpm with a frenetic fizz to redline. Ezra Dyer, Car and Driver, "2020 Polaris Slingshot Still Perplexes Us," 23 Jan. 2020 But by attributing the meltdown to the elimination of redlining, a practice used by banks to discriminate against minority borrowers, Bloomberg appears to be blaming policies intended to bring equality to the housing market. Brian Slodysko,, "Bloomberg once blamed end of ‘redlining’ for 2008 collapse," 13 Feb. 2020 Advocates have argued that forcing people out of camps does nothing to solve the root causes of homelessness, such as unaffordable housing, evictions, redlining, addiction, untreated mental illness, loss of jobs, low wages and abuse at home. Billy Kobin, The Courier-Journal, "Louisville's 2020 homeless count finds more people sleeping on the street than in 2019," 30 Jan. 2020 These movements have appeared in many forms and have familiar names such as Jim Crow, redlining and separate but equal., "Letters: Redistricting schools won’t address low test scores; and more from readers," 5 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'redline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of redline


1952, in the meaning defined above


1968, in the meaning defined at intransitive sense

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Time Traveler for redline

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The first known use of redline was in 1952

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Last Updated

24 Oct 2020

Cite this Entry

“Redline.” Dictionary, Merriam-Webster, Accessed 31 Oct. 2020.

More from Merriam-Webster on redline

Nglish: Translation of redline for Spanish Speakers

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