trigonal
/ˈtrɪɡənəl/
"trigonal" is a 8-letter English headword indexed on PlainSpell.
The verdict
“trigonal” is uncommon English (frequency #96,595 among 3,151 “T” headwords), classed as an adjective. The kind of spelling people second-guess.
- #96,595
- frequency rank, English
- 3,151
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having three angles and three sides, triangular.
Corpus desk
Index EN-trigonal · trigonal · English
trigonal · rank #96,595 · 0 variants · 0 confusables
- FREQ-RARE #96,595
- LEN-LONG 8 letters
- VOW-3 3 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,151
- PHOTO-FINISH trivalent
Nearest frequency peer: trivalent (+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 “trigonal”
Sparse band: bars invert rank so rarer forms read shorter
- transgene
transgene
3,410 corpus weight
- trigonal
trigonal
3,406 corpus weight
- trivalent
trivalent
3,405 corpus weight
- truelove
truelove
3,404 corpus weight
- Tsuji
Tsuji
3,403 corpus weight
- Tsum
Tsum
3,402 corpus weight
What this shows Long-tail view: where “trigonal” sits against similarly uncommon English ranks.
| Property | Value |
|---|---|
| Headword | trigonal |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˈtrɪɡənəl/ |
| Letters | 8 |
| Frequency rank | #96,595 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Long-tail rank of “trigonal” in English
Rare enough to double-check
trigonal is uncommon English at frequency #96,595 among 3,151 “T” headwords, classed as anadjective, transcribed /ˈtrɪɡənəl/. Rarity is why readers land here mid-draft. 3 senses are on record.
We couldn't generate a plausible misspelling set for trigonal, typically a sign the spelling maps closely to how the word sounds. No confusable counterpart is on file for this word, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From Latin trigōnālis (“triangular”), equivalent to trigon + -al. The correct English form is trigonal, spelled T-R-I-G-O-N-A-L.
Definition
- 1Having three angles and three sides, triangular.
- 2Of or pertaining to a crystal system with three equal and equally inclined but not perpendicular axes.
- 3Relating to the trigone
Etymology
From Latin trigōnālis (“triangular”), equivalent to trigon + -al.
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 "trigonal", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 8 letters (nearest by frequency rank).