red line

Also found in: Thesaurus, Acronyms, Wikipedia.


v. red·lined, red·lin·ing, red·lines
1. To refuse to provide mortgages, insurance, or other goods or services to areas deemed a poor economic risk, particularly when the residents are nonwhite.
2. To reach the maximum engine speed at which an engine is designed to be safely operated: The car redlined at 80 miles per hour in fourth gear.
3. Computers To mark or highlight edited text, as with a red line, to distinguish it from unedited portions of a document.
1. To practice redlining in (an area or community), as in declining to provide mortgages.
2. To remove from operational status because of mechanical defects or the need for scheduled maintenance: redlined three fighter aircraft.
3. Computers To mark (edited text) by redlining.
n. or red line
1. A safety limit, as marked on a gauge.
2. The furthest limit of what will be tolerated: The use of chemical weapons in the conflict will cross a red line and trigger immediate intervention.
3. Sports
a. The red line at the center of an ice hockey rink, running parallel to the goal lines and dividing the rink in half.
b. Either of two red lines running across an ice hockey rink near the end boards, in the center of which the goal is positioned.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

red line

(Government, Politics & Diplomacy) a point beyond which a person or group is not prepared to negotiate
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

red′ line`

a line of the color red that is parallel to and equidistant from the goal lines and divides an ice hockey rink in half.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend: line - a line that is colored red and that bisects an ice hockey rinkred line - a line that is colored red and that bisects an ice hockey rink
line - in games or sports; a mark indicating positions or bounds of the playing area
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
It was probably a shield with a red line down the middle of it, called in heraldry a pale.
She repressed a smile at sight of the red line that marked the chafe of the collar against the bronzed neck.
The marshes were just a long black horizontal line then, as I stopped to look after him; and the river was just another horizontal line, not nearly so broad nor yet so black; and the sky was just a row of long angry red lines and dense black lines intermixed.
Philip duly sent the papers and the money, and in return received a calendar worth about a penny, on which was set down the appointed passage to be read each day, and a sheet of paper on one side of which was a picture of the Good Shepherd and a lamb, and on the other, decoratively framed in red lines, a short prayer which had to be said before beginning to read.
Do you see those window-frames painted red, and the red lines on the doors and shutters?
"Open your mouth," I said to Good, who promptly curled up his lips and grinned at the old gentleman like an angry dog, revealing to his astonished gaze two thin red lines of gum as utterly innocent of ivories as a new-born elephant.
Not intervening in Syria -- letting Bashar Assad cross Obama's red line of using chemical weapons on civilians -- makes any red lines regarding Iran's nuclear progress blurrier.
With regards to his party showing the first three articles of the constitution as a red line, Bal said: "There problems regarding the writing of the first three articles.
In a move welcomed by some firms, Newcastle City Council is to introduce London-style red line parking controls on key routes through the city.
We need a red line but a joint one that all of us who live and will stay here are to underline together, a red line that will separate us from the stupidity, obstinacy, the insuperable personal vanity, greediness, short-sightedness, the lack of care for the future generations.
Israeli Prime Minister Benjamin Netanyahu said Thursday that the only way to prevent Iran from acquiring nuclear weapons was to draw a "clear red line" which should not to be crossed by Tehran.
Israeli Prime Minister Binyamin Netanyahu has declared that that the international community has "no moral right" to put a "red light" in front of Israel if it refuses to set a "red line" for Iran.