homotopy
/həˈmɑtəpi/
"homotopy" is a 8-letter English headword indexed on PlainSpell.
The verdict
“homotopy” is uncommon English (frequency #76,857 among 23,837 “H” headwords), classed as a noun. The kind of spelling people second-guess.
- #76,857
- frequency rank, English
- 23,837
- “H” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A continuous deformation of one continuous function or map to another.
| Property | Value |
|---|---|
| Headword | homotopy |
| Language | English |
| Part of speech | Noun |
| IPA | /həˈmɑtəpi/ |
| Letters | 8 |
| Frequency rank | #76,857 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “homotopy” sits in English frequency
Rare enough to double-check
homotopy is uncommon English at frequency #76,857 among 23,837 “H” headwords, classed as anoun, transcribed /həˈmɑtəpi/. Rarity is why readers land here mid-draft. 5 senses are on record.
We couldn't generate a plausible misspelling set for homotopy, a straightforward case of a spelling with little room for common typos. This entry stands alone in our confusable dataset, a sign it's visually distinctive enough not to be mixed up with another word.
Etymologically, the entry records: From Ancient Greek ὁμός (homós, “same, similar”) + τόπος (tópos, “place”); earliest known use in print in 1922, Oswald Veblen, Analysis Situs. The correct English form is homotopy, spelled H-O-M-O-T-O-P-Y.
Definition
- 1A continuous deformation of one continuous function or map to another.
- 2The relationship between two continuous functions where homotopy from one to the other is evident.
- 3Ellipsis of homotopy theory (“the systematic study of homotopies and their equivalence classes”).
- 4A theory associating a system of groups with each topological space.
- 5A system of groups associated with a topological space.
Etymology
From Ancient Greek ὁμός (homós, “same, similar”) + τόπος (tópos, “place”); earliest known use in print in 1922, Oswald Veblen, Analysis Situs.
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 “homotopy”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is H-O-M-O-T-O-P-Y - every other letter order is a misspelling in standard orthography.
- Say it as /həˈmɑtəpi/ (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.