speed

Definitions

1. noun

   How fast something moves.

   Examples

   • How does Usain Bolt run at that speed?
   • The train traveled at great speed.
   ≈celerity≈rapidity≈velocity
2. noun

   The distance something travels in a set time.

   Examples

   • Speed limits tell drivers the safe speed to travel.
   • The speed of the wind was sixty miles an hour.
3. noun

   How sensitive photo film is to light.

   Examples

   • He chose a higher speed film for the low-light shoot.
   • You can change the camera's speed for different light.
4. noun

   How long a camera shutter stays open.

   Examples

   • A fast shutter speed freezes motion.
   • He slowed the speed to capture trails of light.
5. noun

   How wide the opening of a camera lens can be.

   Examples

   • The lens has a wide speed for low-light photos.
   • A fast speed lets in more light.
6. noun

   A number that shows how much light a lens lets in.

   Examples

   • The lens's speed is shown as an f-number.
   • A lower f-number means a faster speed.
7. noun

   In slang, an illegal drug that makes people very awake.

   Examples

   • He was arrested for having speed.
   • The drug known as speed can cause serious sleep problems.
   ≈chalk≈crank≈crystal≈crystal meth≈fire +18 more
8. noun

   In old-fashioned use, luck or success.

   Examples

   • May Saint Francis be my speed tonight.
   • Please send me good speed this day.
9. noun

   What suits your taste or style.

   Examples

   • We could go to the shore, or somewhere else if that's not your speed.
   • A big, loose coat is really my speed.
10. noun

    In finance, a measure of how a price sensitivity changes.

    Examples

    • Traders watch speed to predict shifts in another measure.
    • Speed matters most near the option's end date.
    ≈DgammaDspot≈gamma of the gamma