trilateral
/ˌtrɪˈlæ.təɹ.əl/
"trilateral" is a 10-letter English headword indexed on PlainSpell.
The verdict
“trilateral” is uncommon English (frequency #57,783 among 27,828 “T” headwords), classed as an adjective. The kind of spelling people second-guess.
- #57,783
- frequency rank, English
- 27,828
- “T” headwords
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Having three sides
Corpus desk
Index EN-trilateral · trilateral · English
trilateral · rank #57,783 · 0 variants · 0 confusables
- FREQ-RARE #57,783
- LEN-MEGA 10 letters
- VOW-4 4 vowels
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-DENSE 27,828
- PHOTO-FINISH tren
Nearest frequency peer: tren (-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.
Frequency neighbourhood for “trilateral”
Lower corpus rank = more everyday usage (inverted bar length for readability)
- translitera…
transliteration
42,221 corpus weight
- Tremaine
Tremaine
42,220 corpus weight
- tren
tren
42,219 corpus weight
- trilateral
trilateral
42,218 corpus weight
- Trini
Trini
42,217 corpus weight
- truant
truant
42,216 corpus weight
What this shows Bars show where “trilateral” sits against the nearest ranked English headwords in the FrequencyWords band, not a reprint of letter-browse containment.
| Property | Value |
|---|---|
| Headword | trilateral |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˌtrɪˈlæ.təɹ.əl/ |
| Letters | 10 |
| Frequency rank | #57,783 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “trilateral” sits in English frequency
Rare enough to double-check
trilateral is uncommon English at frequency #57,783 among 27,828 “T” headwords, classed as anadjective, transcribed /ˌtrɪˈlæ.təɹ.əl/. Rarity is why readers land here mid-draft. 2 senses are on record.
The misspelling generator found no plausible variants for trilateral, typically a sign the spelling maps closely to how the word sounds. It is not paired with a close-neighbour confusable in our dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: Borrowed from New Latin trilaterālis or from tri- + lateral. The correct English form is trilateral, spelled T-R-I-L-A-T-E-R-A-L.
Definition
- 1Having three sides
- 2Involving three parties
Recorded use
Wiktionary examplesThese source excerpts show how trilateral appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
The trilateral peace conference, between the red faction, blue faction and white faction, went nowhere.
Meanwhile, a trilateral agreement has been signed with the French and Irish governments committing the nations to keeping freight routes open throughout the pandemic.
Etymology
Borrowed from New Latin trilaterālis or from tri- + 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.
PlainSpell is rendered directly from structured Wiktionary extracts and open word-frequency lists, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 6, 2026. Primary sources: Wiktionary (via kaikki.org) and FrequencyWords.
Frequently Asked Questions
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Similar English words by spelling shape
Same letter count and similar misspelling depth for "trilateral", not the corpus desk frequency band.
Same letter count
Frequency-ranked English headwords with 10 letters (nearest by frequency 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.