redline

red line |ˈredˌlīn ˈrɛdˌlaɪn | informal ▶verb [ with obj. ] 1 drive with (a car engine ) at or above its rated maximum rpm: both his engines were redlined now. 2 refuse (a loan or insurance ) to someone because they live in an area deemed to be a poor financial risk. • cancel (a project ). ▶noun the maximum number of revolutions per minute for a car engine. ORIGIN from the use of red as a limit marker, sense 2 of the verb a limit marked out by ringing a section of a map.

redline

redline |ˈrɛdlʌɪn |N. Amer. informal ▶verb [ with obj. ] 1 drive with (a car engine ) at or above its rated maximum revolutions per minute: both his engines were redlined now. 2 refuse (a loan or insurance ) to someone because they live in an area deemed to be a poor financial risk. • cancel (a project ). ▶noun 1 the maximum number of revolutions per minute for a car engine. 2 a boundary or limit which should not be crossed. ORIGIN from the use of red as a limit marker, in sense 2 of the verb a limit marked out by ringing a section of a map.