Which to use
“acceleration” and “accelerator” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #10,640
- “acceleration” frequency rank
- #16,630
- “accelerator” frequency rank
- 27270
- confusion score
Side-by-Side Comparison
| Feature | acceleration | accelerator |
|---|---|---|
| Definition | The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration. | One who, or that which, accelerates. |
Where the spellings diverge
Shared letters are muted; the letters that actually set acceleration and accelerator apart are highlighted. They share 10 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
acceleration and accelerator form a confusable pair in the English index, two distinct headwords that are easily confused because they look alike, sound alike, or both. They differ by 1 letter(s) in length - close enough that the eye skips over the difference, far enough that meaning fully diverges. Our composite confusion score for this pair is 27270, derived from the frequency rank of both members and their visual similarity.
acceleration is recorded at frequency rank #10,640, classified as anoun, pronounced /əkˌsɛl.əˈɹeɪ.ʃən/. accelerator is at rank #16,630, tagged as anoun, pronounced /əkˈsɛl.əˌɹeɪ.tɚ/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 27270, this pair ranks #380,255 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Frequency comparison
Frequently Asked Questions
Can "acceleration" and "accelerator" be used interchangeably?
Remembering acceleration vs accelerator
The fastest way to pick the right one every time.
- Read both glosses above and match the meaning you intend, only context separates this pair.
- See each word in full, definition, IPA, etymology and its other confusables. Full “acceleration” entry
- Browse more pairs most likely to be confused. Most confusable