acceleration

Name: acceleration, English Word Data
Creator: Wiktionary
License: https://creativecommons.org/licenses/by-sa/4.0/

/əkˌsɛl.əˈɹeɪ.ʃən/

//əkˌsɛl.əˈɹeɪ.ʃən// noun

By PlainSpell · According to Wiktionary data (CC BY-SA) · analyzed September 3, 2026

The verdict

“acceleration” has 16 generated spelling variants in the English index at frequency #10,640. The variants make it a useful spelling check.

#10,640
frequency rank, English: 3,931
“A” headwords: 16
tracked misspellings: 2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.

Corpus desk

Index EN-acceleration · acceleration · English

acceleration · rank #10,640 · 16 variants · 2 confusables

FREQ-MID #10,640
LEN-MEGA 12 letters
VOW-6 6 vowels
CONFUS-LOW 2 pairs
VAR-HIGH 16 variants
BOOK-MID 3,931
PHOTO-FINISH aerospace

Nearest frequency peer: aerospace (+1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

whisper

89,364
worthwhile

89,363
acceleration

89,361
aerospace

89,360
AK

89,359
aluminium

89,358

What this shows “acceleration” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

acceleration vs accelerator

83% similar

acceleration vs accelerating

83% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for acceleration
Property	Value
Headword	acceleration
Language	English
Part of speech	Noun
IPA	/əkˌsɛl.əˈɹeɪ.ʃən/
Letters	12
Frequency rank	#10,640
Misspellings tracked	16
Confusable pairs	2
Source	Wiktionary (kaikki.org)

Frequency seat of misspelling magnet “acceleration”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).accelerationlands here:

#10,640

#1#100#1K#10K#100K

← used constantlyrarely used →

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “aerospace” (#10,641), “worthwhile” (#10,638), “AK” (#10,642). Among 3,931 “A” headwords, “acceleration” is #10,640. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around acceleration (IPA /əkˌsɛl.əˈɹeɪ.ʃən/), anoun. Corpus frequency is #10,640 among 3,931 “A” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for acceleration, with forms such as "acceelration", "acceleartion", and "acceleraiton". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 2 confusable-pair relationships, "accelerator", "accelerating", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *kel-der. Latin celer Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Lat… The correct English form is acceleration, spelled A-C-C-E-L-E-R-A-T-I-O-N.

Definition

1
The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
2
The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
3
The change of velocity with respect to time (can include deceleration or changing direction).
4
The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.

Recorded use

Wiktionary examples

These source excerpts show how acceleration appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

A falling body moves toward the earth with an acceleration of velocity.
On the East and West Coast Main Lines in the 1950s/60s, for example, we saw the extinction of intermediate stations in order to create the same sort of accelerations that IRP is now promising. Back then, the priority was faster main line services, with wayside/intermediate stations paying the ultimate price.

Etymology

Etymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Proto-Indo-European *kel-der. Latin celer Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Latin -ō Latin celerō Latin accelerō Proto-Indo-European *-tisder. Proto-Italic *-tjō Latin -tiō Latin accelerātiōder. English acceleration First attested in 1531. From French accélération or more likely directly from Latin accelerātiō (“a hastening, acceleration”). Equivalent to accelerate + -ion.

Antonyms

deceleration retardation

This word in other languages

aceleración(Español)accélération(Français)Beschleunigung(Deutsch)aceleração(Português)

Common misspellings

Also misspelled as:

acceelration
acceleartion
acceleraiton
accelerasion
acceleratino
accelerationn
acceleratoin
accelerattion
accelerration
accelertaion
accelleration
accelreation
accleeration
acecleration
aceleration
caceleration

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of acceleration - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

Edit distance from "acceleration"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "acceleration"?

"acceleration" is spelled A-C-C-E-L-E-R-A-T-I-O-N. The IPA pronunciation is /əkˌsɛl.əˈɹeɪ.ʃən/.

What does "acceleration" mean?

As a noun, "acceleration" means: The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.

What words are commonly confused with "acceleration"?

"acceleration" is commonly confused with "accelerator", "accelerating". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.

How do you pronounce "acceleration"?

The IPA (International Phonetic Alphabet) transcription for "acceleration" is /əkˌsɛl.əˈɹeɪ.ʃən/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.

What is the origin of the word "acceleration"?

Is PlainSpell free to use?

Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "acceleration", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

inflammation#10,714 quantitative#10,750 unsuccessful#10,789 anticipation#10,487

Similar misspelling depth

Headwords with a similar count of attested misspellings (16 here; floor ≥5).

worthwhile16 variants contention16 variants discoveries16 variants frightened16 variants