orbifold
/ˈɔɹ.bɪˌfoʊld/noun
orbifold is spelled O-R-B-I-F-O-L-D: 8 letters and 3 syllables. It appears about once in every 72 million words in written English, the 269,040th most frequent word form (wordfreq, 2021 data). As a noun, orbifold means “A topological space in which every small enough neighborhood is homeomorphic to a quotient of real space by the action of a finite group” (English Wiktionary, September 2026). The plural of orbifold is orbifolds.
How many letters and syllables are in orbifold?
| Letters | 8: O-R-B-I-F-O-L-D |
|---|---|
| Syllables | 3 (from its pronunciation) |
| In writing | about once in every 72 million words; the 269,040th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is orbifold?
Orbifold appears about once in every 72 million words in written English, the 269,040th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce orbifold?
- US /ˈɔɹ.bɪˌfoʊld/
- UK /ˈɔː.bɪˌfəʊld/
Orbifold has 3 syllables (counted from the pronunciation).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of orbifold
- orbifolds plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does orbifold mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A topological space in which every small enough neighborhood is homeomorphic to a quotient of real space by the action of a finite group.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does orbifold come from?
Blend of orbit + manifold. Named by William Thurston.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).