S s


    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [speed uhp]
    • /spid ʌp/
    • /spiːd ʌp/
    • US Pronunciation
    • US IPA
    • [speed uhp]
    • /spid ʌp/

Definitions of speed-up word

  • noun speed-up rapidity in moving, going, traveling, proceeding, or performing; swiftness; celerity: the speed of light; the speed of sound. 1
  • noun speed-up relative rapidity in moving, going, etc.; rate of motion or progress: full speed ahead. 1
  • noun speed-up full, maximum, or optimum rate of motion: The car gets to speed in just nine seconds. 1
  • noun speed-up Automotive. a transmission gear ratio. 1
  • noun speed-up Photography. Also called film speed. the sensitivity of a film or paper to light, measured by an ASA or DIN index, which assigns low numbers to slow film and higher numbers to faster film. Also called shutter speed. the length of time a shutter is opened to expose film. the largest opening at which a lens can be used. 1
  • noun speed-up Slang. a stimulating drug, as caffeine, ephedrine, or especially methamphetamine or amphetamine. 1

Information block about the term

Origin of speed-up

First appearance:

before 1920
One of the 12% newest English words
First recorded in 1920-25; noun use of verb phrase speed up

Historical Comparancy

Parts of speech for Speed-up


speed-up popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 47% of English native speakers know the meaning and use word.
This word is included in each student's vocabulary. Most likely there is at least one movie with this word in the title.

Antonyms for speed-up

noun speed-up

  • deceleration — to decrease the velocity of: He decelerates the bobsled when he nears a curve.
  • downtrend — a downward or decreasing tendency, movement, or shift: a downtrend in gasoline consumption; a downtrend in stock prices.
  • drop-off — a vertical or very steep descent: The trail has a drop-off of several hundred feet.
  • falloff — a decline in quantity, vigor, etc.

Top questions with speed-up

  • how to speed-up your computer?
  • how to speed-up my computer?
  • how to speed-up internet connection?
  • how to speed-up my pc?

See also

Matching words

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