Word Pronunciation & Dictionary

deceleration

/dɪˌsɛləˈɹeɪʃən/

Word Rarity Rare

Frequency: Zipf frequency 2.73 in modern English

Syllables: de-cel-er-a-tion
IPA: /dɪˌsɛləˈɹeɪʃən/

15

Scrabble Score

12

Letters

5

Syllables

10

Unique Chars

Meaning

noun

The act or process of decelerating.

Uncountable

noun

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.

Countable

Example Sentences

"The rocket is now in deceleration."
"Comparing both Regions' 1959 services against those of 1939 an appreciable deceleration is evident. This was due to increased loadings, even though more trains were being run, while on the W.R. in particular the increased volume of freight traffic over the line shared the blame."
"The brakes produce a deceleration of 10 metres per second."

Etymology

From de- + (ac)celeration.

Word Breakdown

Prefix: de

Regional Pronunciation

American English: /dɪˌsɛləˈɹeɪʃən/
British English: /diːsɛləˈɹeɪʃən/

Usage

Inflected Forms

decelerations (plural)

Derived Forms

cardiodeceleration decelerational decelerationism decelerationist equideceleration

Frequently Paired Words

decelerate

Synonyms

slowing retardation

Antonyms

acceleration

Rhymes With

information education situation population station association administration operation organization nation location application

Questions

How do you pronounce deceleration?: The recorded pronunciation is /dɪˌsɛləˈɹeɪʃən/.
What does deceleration mean?: The act or process of decelerating.
Where does deceleration come from?: From de- + (ac)celeration.

How to pronounce deceleration

Open the pronunciation page — Open the Speakur entry for “deceleration”.
Read the phonetic spelling — Read the IPA spelling (/dɪˌsɛləˈɹeɪʃən/) so you know which sounds to aim for.
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