adjoin

/əˈd͡ʒɔɪn/

//əˈd͡ʒɔɪn// verb

By · According to Wiktionary data (CC BY-SA) ·

"adjoin" is a 6-letter English headword indexed on PlainSpell.

The verdict

“adjoin” is an uncommon English word, ranked #97,763 in English word frequency and used as a verb.

#97,763
frequency rank, English
6
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - To be in contact or connection with.

Key facts for adjoin
PropertyValue
Headwordadjoin
LanguageEnglish
Part of speechVerb
IPA/əˈd͡ʒɔɪn/
Letters6
Frequency rank#97,763
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “adjoin” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). adjoin lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for adjoin is 6 letters long, classified as a verb, and transcribed in the International Phonetic Alphabet as /əˈd͡ʒɔɪn/. Corpus data places it at rank #97,763 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

adjoin doesn't appear in our generated misspelling index, which points to an orthography that plays by predictable English rules. This headword has no recorded confusable partner, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

Etymologically, the entry records: From Anglo-Norman adjoindre, from Latin adiungō. The correct English form is adjoin, spelled A-D-J-O-I-N.

Definition

  1. 1
    To be in contact or connection with.
  2. 2
    To extend an algebraic object (e.g. a field, a ring, etc.) by adding to it an element not belonging to it and then ensuring closure, for example by also adding all finite power series of the element.

Etymology

From Anglo-Norman adjoindre, from Latin adiungō.

This word in other languages

adjoindre(Français)

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

How do you spell "adjoin"?
"adjoin" is spelled A-D-J-O-I-N. The IPA pronunciation is /əˈd͡ʒɔɪn/.
What does "adjoin" mean?
As a verb, "adjoin" means: To be in contact or connection with.
How do you pronounce "adjoin"?
The IPA (International Phonetic Alphabet) transcription for "adjoin" is /əˈd͡ʒɔɪn/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "adjoin"?
From Anglo-Norman adjoindre, from Latin adiungō. 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.

Using “adjoin”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is A-D-J-O-I-N - every other letter order is a misspelling in standard orthography.
  • Say it as /əˈd͡ʒɔɪn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • 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.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list