redline
See also: red line
English
Etymology
red + line, originating with the frequent use of red pen or pencil to mark corrections on drawings and documents (1), and the red markings on a tachometer (2).
Pronunciation
Noun
redline (plural redlines)
- A drawing, document, etc. that has been marked for correction or modification.
- The maximum speed at which the engine in a car is designed to operate.
Verb
redline (third-person singular simple present redlin, present participle ing, simple past and past participle redlined)
- To mark a drawing or document for correction or modification.
- (automotive) To run an internal combustion engine to its maximum or maximum recommended speed.
- (Canada, US) To deny or complicate access to services (such as banking, insurance, or healthcare) to residents in specific, often racially determined, areas.
- Antonym: greenline
