noun

• (mathematics, physics) The rate of motion or action, specifically the magnitude of the velocity; the rate distance is traversed in a given time.
  "Speed limits provide information to the drivers about the safe speed to travel in average conditions."
• (photography) The sensitivity to light of film, plates or sensor.
• (photography) The duration of exposure, the time during which a camera shutter is open (shutter speed).
• (photography) The largest size of the lens opening at which a lens can be used.

intj

• (film) Called by the soundman when the recording equipment has reached running speed and is ready to go.
  "“Speed,” Carlos, the soundman, said. […] “Camera.” “Rolling,” replied Bryce, the cameraman."

verb

• (intransitive, archaic) To succeed; to prosper, be lucky.
  "And yf I maye fynde suche a knyghte that hath all these vertues / he may drawe oute this swerd oute of the shethe / for I haue ben at kyng Ryons / it was told me ther were passyng good knyghtes / and he and alle his knyghtes haue assayed it and none can spede"
• (transitive, archaic) To help someone, to give them fortune; to aid or favour.
  "God speed, until we meet again."
• (intransitive) To go fast.
  "The Ferrari was speeding along the road."
• (intransitive) To exceed the speed limit.
  "Why do you speed when the road is so icy?"