: 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
redlined; redlining; redlines
: to withhold home-loan funds or insurance from neighborhoods considered poor economic risks
: to discriminate against in housing or insurance
Examples of redline in a Sentence
Recent Examples on the Web
Happymon Jacob, Foreign Affairs, 22 July 2024
Even more impressive might be the mill’s 15,000 rpm redline, all but ensuring the car will scream around the track.
—Bryan Hood, Robb Report, 12 July 2024
Hayley Smith, Los Angeles Times, 21 July 2024
Comparing 1930s redlining maps with recent heat vulnerability maps by New York City’s health department reveals stunning correlations between how areas were categorized and where residents are most likely to die from heat.
—Ryan Doan-Nguyen, The Christian Science Monitor, 8 July 2024
See all Example Sentences for redline 
Noun
Already, India has struggled to set and enforce redlines among its neighbors, for example, with Chinese spy ships docking in Sri Lanka in recent years.
—Happymon Jacob, Foreign Affairs, 22 July 2024
Even more impressive might be the mill’s 15,000 rpm redline, all but ensuring the car will scream around the track.
—Bryan Hood, Robb Report, 12 July 2024
Verb
In urban areas, research has found that oil wells are more likely to be sited in neighborhoods that were historically redlined, or racially segregated.
—Hayley Smith, Los Angeles Times, 21 July 2024
Comparing 1930s redlining maps with recent heat vulnerability maps by New York City’s health department reveals stunning correlations between how areas were categorized and where residents are most likely to die from heat.
—Ryan Doan-Nguyen, The Christian Science Monitor, 8 July 2024
See all Example Sentences for redline
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'redline.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near redline
Cite this Entry
“Redline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/redline. Accessed 16 Sep. 2024.
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