redline

or red-line

[ verb red-lahyn; noun red-lahyn ]

/ verb ˈrɛdˌlaɪn; noun ˈrɛdˈlaɪn /

verb (used with object), red·lined, red·lin·ing.

to treat by redlining (an area or neighborhood).

to establish the recommended safe speed of (an airplane): The bomber is redlined at 650 miles an hour.

to draw a canceling red line through (an item on a list).

to mark or designate for cancellation, rejection, dismissal, or the like: club members redlined for unpaid dues.

to cause (an airplane) to be grounded.

verb (used without object), red·lined, red·lin·ing.

to engage in redlining.

noun

Automotive.

the maximum rotational speed, or angular velocity, of the engine crankshaft that is considered safe: often measured in rpm.
a red line or boundary of a red area that delineates such a value, as on a tachometer.

Words nearby redline

redistrict, redivivus, redlands, redleg, redlegged grasshopper, redline, redlining, redly, redmond, redneck, redness

Origin of redline

First recorded in 1940–45; red¹ + line¹

OTHER WORDS FROM redline

red·lin·er, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for red-lined

He was about to fire, when one of the Indians in the hole below spotted the red-lined coat.
An Autobiography of Buffalo Bill (Colonel W. F. Cody)|Buffalo Bill (William Frederick Cody)
Barbara and Reynold were apart from all the rest in the square, red-lined pew which had always belonged to the Rothwells.
Mitchelhurst Place, Vol. I (of 2)|Margaret Veley
Mr. Dunbar took his faithful friend—his short pipe—from its red-lined case, filled it with tobacco, and began to draw luxuriously.
Peter and Jane|S. (Sarah) Macnaughtan
In the smoke and din Ashby leaped forward, waving the red-lined cloak above his head.
The Long Roll|Mary Johnston

Sam strutted around for some time after that, holding up his arm so that he might feast his eyes on the red-lined rating mark.
The Battleship Boys at Sea|Frank Gee Patchin

British Dictionary definitions for red-lined

redline

/ (ˈrɛdˌlaɪn) /

verb (tr)

(esp of a bank or group of banks) to refuse a loan to (a person or country) because of the presumed risks involved

to restrict people's access to goods or services on the basis of the area in which they live

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012