superlative form of high-speed: most high-speed

(aviation) The airspeed at which the lift generated by an aircraft flying with an angle of attack equal to the stall angle (the point of maximum lift for a given airspeed) is exactly equal to the aircraft's weight; the minimum airspeed at which it is possible to maintain level unaccelerated flight.

The speed, measured in revolutions per minute, of an internal-combustion engine when it is running, but is at rest and without power being applied, typically with transmission in neutral.

The speed of a moving object relative to another object which it is approaching.

plural of speed run

Third-person singular simple present indicative form of speed run

simple past tense of speed run

Alternative form of Godspeed

Third-person singular simple present indicative form of speed stack

(sports) a person who practices or competes in speed stacking