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deceleration

noun

Simple meaning

The amount by which a speed or velocity decreases, an acceleration having a negative numerical value.

Pronunciation

Say it like this:

dihsuhlerayshuhn

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US device voice
IPA pronunciation (US)

dɪsɛlɚˈeɪʃən

This word is pronounced essentially the same in American and British English, so one transcription covers both.

IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.

Word Review

Definition

Everyday modern meanings first, grouped by part of speech.

noun

  1. The act of decelerating; decreasing the speed

  2. uncountable

    The act or process of decelerating.

  3. countable

    The amount by which a speed or velocity decreases (and so a scalar quantity or a vector quantity), an acceleration having a negative numerical value.

Word at a Glance

Difficulty
C2 · Proficient
Frequency
Rare
Typical Use
Primarily written

Word Aura™

How this word commonly comes across.

Aura for this meaning

This meaning: The act of decelerating; decreasing the speed

Used this way, deceleration is a reasonably familiar word that usually carries little praise or criticism of its own. It usually sounds natural in a wide range of settings.

Emotional tone
Neutral
Formality
Neutral
Intensity
Not strongly marked
How common
Moderately common
Connotation
Matter-of-fact
Usage feel
Neutral and straightforward

Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.

More ways to use deceleration

  • “The deceleration of the arms race.”noun

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Common Patterns and Combinations

How this word naturally appears with others.

deceleration parameterrapid decelerationdeceleration phasemaximum decelerationsudden decelerationlate decelerationrate decelerationcardiac deceleration

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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.