adjunction
"adjunction" is a 10-letter English headword indexed on PlainSpell.
The verdict
“adjunction” is outside the top-ranked English vocabulary, used as a noun - the kind of word writers most often double-check.
- Unranked
- below top-frequency English
- 10
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - The act of joining; the thing joined or added.
| Property | Value |
|---|---|
| Headword | adjunction |
| Language | English |
| Part of speech | Noun |
| Letters | 10 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “adjunction” sits in English frequency
Spelling & Dictionary Insight
The English entry for adjunction is 10 letters long, classified as a noun. It sits outside the most-frequent rank tiers, which is often why uncommon words generate more spelling variants per reader. Wiktionary records 6 distinct senses for this headword, so context determines which meaning a reader should apply.
adjunction doesn't appear in our generated misspelling index, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From Latin adjunctio, from adjungere: compare French adjonction, and see adjunct. The correct English form is adjunction, spelled A-D-J-U-N-C-T-I-O-N.
Definition
- 1The act of joining; the thing joined or added.
- 2The joining of personal property owned by one to that owned by another.
- 3The process of adjoining elements to an algebraic structure (usually a ring or field); the result of such a process.
- 4A relationship between a pair of categories that makes the pair, in a weak sense, equivalent.
- 5A natural isomorphism between a pair of functors satisfying certain conditions, whose existence implies a close relationship between the functors and between their (co)domains; the natural isomorphism, functors, and their (co)domains thought of as a single object.
- 6A natural isomorphism between a pair of functors satisfying certain conditions, whose existence implies a close relationship between the functors and between their (co)domains; the natural isomorphism, functors, and their (co)domains thought of as a single object.
Etymology
From Latin adjunctio, from adjungere: compare French adjonction, and see adjunct.
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
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Using “adjunction”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is A-D-J-U-N-C-T-I-O-N - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
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.