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 tach shows a low redline for the first 500 miles, until the engine is broken in. Ezra Dyer, Popular Mechanics, "20 Things You Didn't Know About The 2020 Corvette," 19 July 2019 The Duramax has a redline of 5,100 rpm but that's easy to live with since 95 percent of that torque is on tap at a low 1,250 rpm and full torque is delivered from 1,500 rpm through 3,000 rpm. Jeff Yip, Houston Chronicle, "Chevy adds new 460 lb.-ft. Duramax to 2020 Silverado 1500 lineup," 2 July 2019 Also looming are new redlines and deadlines in the mess called Brexit. Washington Post, "Boris Johnson expected to win British prime minister vote," 23 July 2019 What worries analysts is that the president does not seem to have a clear redline or standard for what could prompt such conflict with Tehran. Mythili Sampathkumar, Fortune, "U.S. to Send More Troops to Saudi Arabia," 18 July 2019 However, driving a GT3 RS at redline on a road course could convince you that all cars should have rear-wheel-drive, naturally aspirated flat sixes, and three-story wings on the back. Ezra Dyer, Popular Mechanics, "Driving the Porsche GT3 RS and GT2 RS, the New Quickest Production Cars," 5 Apr. 2019 But what's different with President Trump from President Obama is this president drew a redline and enforced it on chemical weapons. Fox News, "Pence on impact of anonymous NYT op-ed, Woodward's new book," 9 Sep. 2018 The car is powered by a 1.3L, four-cylinder Suzuki bike engine that loves to rev up to the 10,000rpm redline. Jonathan M. Gitlin, Ars Technica, "How a day driving high-downforce cars at VIR taught me I’m OK being slow," 11 Sep. 2018 The redline moves up the scale as well, to 7,500 rpm. Jeff Yip, Houston Chronicle, "2019 Mazda MX-5 gets 26-hp boost," 23 June 2018

Recent Examples on the Web: Verb

For instance, Buttigieg said, food deserts—neighborhoods that lack access to grocery stores and fresh food—have a relationship to redlining, a practice in which lending organizations will decline mortgages for certain areas. Melanie Eversley, Fortune, "2020 Candidates Focus on Criminal Justice, White Supremacy at Forum Before Black Journalists Convention," 12 Aug. 2019 Historic policies leave lasting segregation The practice of redlining by the federal government in the 1930s created patterns of segregation still seen today. Ashley Luthern, Milwaukee Journal Sentinel, "How Milwaukee became so segregated and why it matters when it comes to crime," 10 July 2019 There was, instead, a long legacy of policy decisions (restrictive covenants, redlining) and informal norms that had created a stark pattern of residential segregation. Matthew Yglesias, Vox, "Democratic candidates’ school integration plans, explained," 3 July 2019 Bennett’s father, a black World War II Navy veteran, was an airplane mechanic at a local naval air station in 1945, when redlining blocked him and his wife from buying a house in a white neighborhood. Melanie Mason,, "School busing in Berkeley during Kamala Harris’ childhood was both voluntary and volatile," 30 June 2019 Warren’s plan provides down payment grants to first-time homebuyers who live in areas that were previously redlined or officially segregated. Jeff Andrews, Curbed, "Where the Democratic primary candidates stand on housing," 8 July 2019 As in many American cities, the discriminatory housing policy known as redlining kept blacks from moving into white neighborhoods in Berkeley and busing fueled some white flight to the suburbs. Melanie Mason,, "School busing in Berkeley during Kamala Harris’ childhood was both voluntary and volatile," 30 June 2019 African Americans seeking home loans found themselves redlined — ineligible for credit — because the government would not guarantee the loans. Calvin Schermerhorn, Twin Cities, "Calvin Schermerhorn: Why the racial wealth gap persists more than 150 years after emancipation," 27 June 2019 As many on the panel noted, redlining, attacks on voting rights, and police violence are all problems right now. Alex Shephard, The New Republic, "America, We Need to Talk," 20 June 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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Statistics for redline

Last Updated

11 Sep 2019

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Time Traveler for redline

The first known use of redline was in 1952

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Rhyming Dictionary: Words that rhyme with redline

Nglish: Translation of redline for Spanish Speakers

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formidable, illustrious, or eminent

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