trapezoidal
"trapezoidal" is a 11-letter English headword indexed on PlainSpell.
The verdict
“trapezoidal” is uncommon English (frequency #65,584 among 3,151 “T” headwords), classed as an adjective. The kind of spelling people second-guess.
- #65,584
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In the shape of a trapezoid, or having some faces which have one pair of parallel sides.
Corpus desk
Index EN-trapezoidal · trapezoidal · English
trapezoidal · rank #65,584 · 0 variants · 0 confusables
- FREQ-RARE #65,584
- LEN-MEGA 11 letters
- VOW-5 5 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH tramadol
Nearest frequency peer: tramadol (-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 “trapezoidal”
Sparse band: bars invert rank so rarer forms read shorter
- TPU
TPU
34,421 corpus weight
- traditional…
traditionalism
34,420 corpus weight
- tramadol
tramadol
34,418 corpus weight
- trapezoidal
trapezoidal
34,417 corpus weight
- travertine
travertine
34,416 corpus weight
- troposphere
troposphere
34,415 corpus weight
What this shows Long-tail view: where “trapezoidal” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | trapezoidal |
| Language | English |
| Part of speech | Adjective |
| Letters | 11 |
| Frequency rank | #65,584 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “trapezoidal” in English
Rare enough to double-check
trapezoidal is uncommon English at frequency #65,584 among 3,151 “T” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "In the shape of a trapezoid, or having some faces which have one pair of parallel sides.".
No misspelling variants are generated for trapezoidal in our index, which points to an orthography that plays by predictable English rules. 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 trapezoid + -al. The correct English form is trapezoidal, spelled T-R-A-P-E-Z-O-I-D-A-L.
Definition
- 1In the shape of a trapezoid, or having some faces which have one pair of parallel sides.
Recorded use
Wiktionary exampleThese source excerpts show how trapezoidal appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
On the each end was a leanback made of willow rods tied together in a tapered trapezoidal form set at an angle. Covers of buffalo hide with the hair on and quillwork designs were draped over the leanback and bed surface.
Etymology
From trapezoid + -al.
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 "trapezoidal", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 11 letters (nearest by frequency rank).