equilateral
"equilateral" is a 11-letter English headword indexed on PlainSpell.
The verdict
“equilateral” is uncommon English (frequency #62,874 among 2,246 “E” headwords), classed as an adjective. The kind of spelling people second-guess.
- #62,874
- frequency rank, English
- 2,246
- “E” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having all the sides equal.
Corpus desk
Index EN-equilateral · equilateral · English
equilateral · rank #62,874 · 0 variants · 0 confusables
- FREQ-RARE #62,874
- LEN-MEGA 11 letters
- VOW-6 6 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 2,246
- PHOTO-FINISH Escalante
Nearest frequency peer: Escalante (+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 “equilateral”
Sparse band: bars invert rank so rarer forms read shorter
- enchilada
enchilada
37,130 corpus weight
- endear
endear
37,129 corpus weight
- equilateral
equilateral
37,127 corpus weight
- Escalante
Escalante
37,126 corpus weight
- evanescence
evanescence
37,125 corpus weight
- evangelical…
evangelicalism
37,124 corpus weight
What this shows Long-tail view: where “equilateral” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | equilateral |
| Language | English |
| Part of speech | Adjective |
| Letters | 11 |
| Frequency rank | #62,874 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “equilateral” in English
Rare enough to double-check
equilateral is uncommon English at frequency #62,874 among 2,246 “E” headwords, classed as anadjective. Rarity is why readers land here mid-draft. 4 senses are on record.
We couldn't generate a plausible misspelling set for equilateral, suggesting the orthography follows predictable English patterns. No close-neighbour confusable shows up for this headword in our dataset, suggesting its spelling stands apart enough that readers rarely confuse it with something else.
Etymologically, the entry records: From equi- + lateral. The correct English form is equilateral, spelled E-Q-U-I-L-A-T-E-R-A-L.
Definition
- 1Having all the sides equal.
- 2Having all the faces equal.
- 3Having the two sides equal, as a surface divisible by a longitudinal median line into two halves of the same form.
- 4Having all the convolutions of the shell in one plane, chiefly of foraminifers.
Recorded use
Wiktionary exampleThese source excerpts show how equilateral appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Kissinger had wanted to keep an “equilateral” distance between the US, USSR and China. Under Carter, they became de facto partners.
Etymology
From equi- + lateral.
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 "equilateral", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).