verb (redlin, ing)
- 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.
Etymology: A compound of red + line, recalling the frequent use of red pen or pencil to mark corrections on drawings and documents (1), and the red markings on a tachometer (2).
- To mark a drawing or document for correction or modification.
- To run an internal combustion engine to its maximum or maximum recommended speed.
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