decelerate
/diːˈsɛləɹeɪt/
"decelerate" is a 10-letter English headword indexed on PlainSpell.
The verdict
“decelerate” is uncommon English (frequency #68,141 among 3,470 “D” headwords), classed as a verb. The kind of spelling people second-guess.
- #68,141
- frequency rank, English
- 3,470
- “D” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - To reduce the velocity of something.
Corpus desk
Index EN-decelerate · decelerate · English
decelerate · rank #68,141 · 0 variants · 0 confusables
- FREQ-RARE #68,141
- LEN-MEGA 10 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,470
- PHOTO-FINISH debaters
Nearest frequency peer: debaters (-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.
Long-tail ranks near “decelerate”
Sparse band: bars invert rank so rarer forms read shorter
- cultivator
cultivator
31,865 corpus weight
- curlew
curlew
31,864 corpus weight
- cytosolic
cytosolic
31,863 corpus weight
- debaters
debaters
31,861 corpus weight
- decelerate
decelerate
31,860 corpus weight
- declassific…
declassification
31,859 corpus weight
What this shows Long-tail view: where “decelerate” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | decelerate |
| Language | English |
| Part of speech | Verb |
| IPA | /diːˈsɛləɹeɪt/ |
| Letters | 10 |
| Frequency rank | #68,141 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “decelerate” in English
Rare enough to double-check
decelerate is uncommon English at frequency #68,141 among 3,470 “D” headwords, classed as averb, transcribed /diːˈsɛləɹeɪt/. Rarity is why readers land here mid-draft. 3 senses are on record.
The misspelling generator found no plausible variants for decelerate, suggesting the orthography follows predictable English patterns. No close-neighbour confusable shows up for this headword in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.
Etymologically, the entry records: Late 19th c., from de- + (ac)celerate. Compare deaccelerate. The correct English form is decelerate, spelled D-E-C-E-L-E-R-A-T-E.
Definition
- 1To reduce the velocity of something.
- 2To reduce the rate of advancement of something, such as a disease.
- 3To go slower.
Recorded use
Wiktionary examplesThese source excerpts show how decelerate appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
In May, for example, the Illinois Central RR. introduced the long-expected streamline version of the Panama Limited, with diesel haulage, cutting the time over the 921 miles between Chicago and New Orleans by 2hr. to 18hr. each way—the fastest on record—but decelerated other trains over the same route.
The S.D.R. [Somerset & Dorset Railway] could not adhere to this schedule, and had to decelerate the service, but the original timings were restored when the M.R. and L.S.W.R. leased the S.D.R.
Etymology
Late 19th c., from de- + (ac)celerate. Compare deaccelerate.
Antonyms
This word in other languages
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
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "decelerate", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency rank).