truncation
/tɹʌŋˈkeɪʃən/
"truncation" is a 10-letter English headword indexed on PlainSpell.
The verdict
“truncation” is uncommon English (frequency #68,709 among 27,828 “T” headwords), classed as a noun. The kind of spelling people second-guess.
- #68,709
- frequency rank, English
- 27,828
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The act of truncating or shortening (for example, words are shortened to form blend words or portmanteaus).
| Property | Value |
|---|---|
| Headword | truncation |
| Language | English |
| Part of speech | Noun |
| IPA | /tɹʌŋˈkeɪʃən/ |
| Letters | 10 |
| Frequency rank | #68,709 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “truncation” sits in English frequency
Rare enough to double-check
truncation is uncommon English at frequency #68,709 among 27,828 “T” headwords, classed as anoun, transcribed /tɹʌŋˈkeɪʃən/. Rarity is why readers land here mid-draft. 3 senses are on record.
truncation doesn't appear in our generated misspelling index, since its letter pattern doesn't lend itself to common typo substitutions. This entry stands alone in our confusable dataset, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From Late Latin truncātiō, from Latin truncāre, past participle truncātus (“to cut off”). By surface analysis, truncate + -ion. The correct English form is truncation, spelled T-R-U-N-C-A-T-I-O-N.
Definition
- 1The act of truncating or shortening (for example, words are shortened to form blend words or portmanteaus).
- 2The removal of the least significant digits from a decimal number.
- 3An operation in any dimension that cuts a regular polytope at its vertices, creating a new facet in place of each vertex.
Etymology
From Late Latin truncātiō, from Latin truncāre, past participle truncātus (“to cut off”). By surface analysis, truncate + -ion.
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 “truncation”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is T-R-U-N-C-A-T-I-O-N - every other letter order is a misspelling in standard orthography.
- Say it as /tɹʌŋˈkeɪʃən/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- 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.