Category: Science & TechnologyPart of speech: nounDifficulty: Advanced

acceleration

/acceleration/Roman
US/ˌækˌsɛɫɝˈeɪʃən/
UK/ɐksˌɛləɹˈeɪʃən/

English meaning: Acceleration

Definition

The rate at which the speed or direction of a moving object changes over time.

Example

The sports car is famous for its rapid acceleration from zero to a hundred kilometres an hour.

Another example: The sports car is famous for its breathtaking acceleration from a standing start.

Usage — When, Where & How

An uncountable/countable noun in physics (the rate of change of velocity) and everyday use (the car's acceleration). The opposite is 'deceleration'. Used attributively (acceleration phase).

Etymology & Origin

English — Origin & History

From Latin 'acceleratio', from 'accelerare' (to hasten), from 'ad-' plus 'celer' (swift).

Synonyms

  • quickening
  • speeding up
  • speedup

Antonyms / Opposites

  • deceleration
  • slowing

Related Words

Common Collocations

  • rapid acceleration
  • constant acceleration
  • acceleration due to gravity
  • sudden acceleration
  • rate of acceleration
  • car's acceleration

Word Forms

acceleration (n); accelerate (v); accelerated; accelerating

Word Tools

5 syllables

Tools & Calculators

Literary Heritage

To thine own self be true, and it must follow, as the night the day, thou canst not then be false to any man.

/To thine own self be true/

Be honest with yourself — and as naturally as night follows day, you will be unable to be false to others.

William Shakespeare · Playwright & Poet · 1564–1616

Hamlet, Act II

Hamlet, II.i — Polonius's parting words to Laertes; the most quoted line in Shakespeare

I'm nobody! Who are you? Are you nobody, too?

/I'm nobody! Who are you?/

I am nobody — and that quiet anonymity is more honest than the noise of public fame.

Emily Dickinson · Poet · 1830–1886

Poems

Poem 288 — Dickinson's subversive celebration of solitude over social recognition

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Language
English
English
Script
Latin
Family
Indo-European
Speakers
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