/spiːd/
noun
The state of moving quickly or the capacity for rapid motion; rapidity.The rate of motion or action, specifically / the magnitude of the velocity; the rate distance is traversed in a given time.The sensitivity to light of film, plates or sensor.The duration of exposure, the time during which a camera shutter is open (shutter speed).The largest size of the lens opening at which a lens can be used.The ratio of the focal length to the diameter of a photographic objective.Amphetamine or any amphetamine-based drug (especially methamphetamine) used as a stimulant, especially illegally.Luck, success, prosperity.Personal preference.A third-order measure of derivative price sensitivity, expressed as the rate of change of gamma with respect to changes in the underlying asset price.