speedup
"speedup" is a 7-letter English headword indexed on PlainSpell.
The verdict
“speedup” is uncommon English (frequency #81,844 among 54,294 “S” headwords), classed as a noun. The kind of spelling people second-guess.
- #81,844
- frequency rank, English
- 54,294
- “S” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - An amount or rate of decrease in time taken to do a certain amount of work.
| Property | Value |
|---|---|
| Headword | speedup |
| Language | English |
| Part of speech | Noun |
| Letters | 7 |
| Frequency rank | #81,844 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “speedup” sits in English frequency
Rare enough to double-check
speedup is uncommon English at frequency #81,844 among 54,294 “S” headwords, classed as anoun. Rarity is why readers land here mid-draft. 3 senses are on record.
The misspelling generator found no plausible variants for speedup, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: Deverbal from speed up. The correct English form is speedup, spelled S-P-E-E-D-U-P.
Definition
- 1An amount or rate of decrease in time taken to do a certain amount of work.
- 2The relationship between time taken and number of processors used.
- 3An employer's demand for more output without more pay.
Etymology
Deverbal from speed up.
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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Using “speedup”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is S-P-E-E-D-U-P - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Other uncommon English words near this rank
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.