speed vs velocity

speed

noun
  • The state of moving quickly or the capacity for rapid motion. 

  • The duration of exposure, the time during which a camera shutter is open (shutter speed). 

  • The rate of motion or action, specifically the magnitude of the velocity; the rate distance is traversed in a given time. 

  • 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. 

  • 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. 

  • The sensitivity to light of film, plates or sensor. 

  • The largest size of the lens opening at which a lens can be used. 

  • Personal preference. 

verb
  • To be under the influence of stimulant drugs, especially amphetamines. 

  • To cause to make haste; to dispatch with celerity; to drive at full speed; hence, to hasten; to hurry. 

  • To hasten to a conclusion; to expedite. 

  • To go fast. 

  • To exceed the speed limit. 

  • To increase the rate at which something occurs. 

intj
  • Called by the soundman when the recording equipment has reached running speed and is ready to go. 

velocity

noun
  • Rapidity of motion. 

  • A vector quantity that denotes the rate of change of position with respect to time, combining speed with a directional component. 

  • The number of times that an average unit of currency is spent during a specific period of time. 

  • The rate of occurrence. 

How often have the words speed and velocity occurred in a corpus of books? (source: Google Ngram Viewer )