ternion

noun

"ternion" is a 7-letter English headword indexed on PlainSpell.

The verdict

“ternion” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency English
7
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A group of three things together; a ternary, triplet or triad.

Corpus desk

Index EN-ternion · ternion · English

ternion · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "T" thin
  • PHOTO-UNK Peer pending

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.

Key facts for ternion
PropertyValue
Headwordternion
LanguageEnglish
Part of speechNoun
Letters7
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “ternion” in English

ternionranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

ternion is uncommon English outside the top frequency list, classed as anoun. Rarity is why readers land here mid-draft. 2 senses are on record.

We couldn't generate a plausible misspelling set for ternion, and the word's spelling is regular enough that our generator found nothing worth flagging. This entry stands alone in our confusable dataset, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From Latin ternio, from terni (“three each”). See tern (adjective). The correct English form is ternion, spelled T-E-R-N-I-O-N.

Definition

  1. 1
    A group of three things together; a ternary, triplet or triad.
  2. 2
    A section of paper for a book containing three double leaves or twelve pages.

Recorded use

Wiktionary example

These source excerpts show how ternion appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. disposing them into ternions of three general hierarchies

Etymology

From Latin ternio, from terni (“three each”). See tern (adjective).

Synonyms

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "ternion"?
"ternion" is spelled T-E-R-N-I-O-N.
What does "ternion" mean?
As a noun, "ternion" means: A group of three things together; a ternary, triplet or triad.
What is the origin of the word "ternion"?
From Latin ternio, from terni (“three each”). See tern (adjective). See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list