adieu

/əˈdju/

//əˈdju// intj

"adieu" is a 5-letter English headword indexed on PlainSpell.

The verdict

“adieu” is a moderately-common English word, ranked #35,604 in English word frequency and used as an interjection.

#35,604
frequency rank, English
5
letters
5
tracked misspellings
12
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Said to wish a final farewell; goodbye.

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

adieu vs Arie
40% similar
adieu vs alien
60% similar
adieu vs Ariel
40% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for adieu
PropertyValue
Headwordadieu
LanguageEnglish
Part of speechInterjection
IPA/əˈdju/
Letters5
Frequency rank#35,604
Misspellings tracked5
Confusable pairs12
SourceWiktionary (kaikki.org)

Where “adieu” 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). adieu 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 adieu is 5 letters long, classified as an interjection, and transcribed in the International Phonetic Alphabet as /əˈdju/. Corpus data places it at rank #35,604 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Said to wish a final farewell; goodbye.".

Our generated misspelling index lists 5 likely wrong-spelling variants for adieu, with forms such as "addieu", "adeiu", and "adiue". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 12 confusable-pair relationships, "Arie", "alien", "Ariel", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle English adieu also adew, adewe, adue, from Old French adieu (“to God”), a shortening of a Dieu vous comant (“I commend you to God”), from Medieval Latin ad Deum (“to God”). Doublet of adios. The correct English form is adieu, spelled A-D-I-E-U.

Definition

  1. 1
    Said to wish a final farewell; goodbye.

Etymology

From Middle English adieu also adew, adewe, adue, from Old French adieu (“to God”), a shortening of a Dieu vous comant (“I commend you to God”), from Medieval Latin ad Deum (“to God”). Doublet of adios.

Synonyms

Common misspellings

Also misspelled as: addieu,adeiu,adiue,aideu,daieu

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of adieu - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

addieu1adeiu2adiue2aideu2daieu2
Edit distance from "adieu"

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 "adieu"?
"adieu" is spelled A-D-I-E-U. The IPA pronunciation is /əˈdju/.
What does "adieu" mean?
As an interjection, "adieu" means: Said to wish a final farewell; goodbye.
What words are commonly confused with "adieu"?
"adieu" is commonly confused with "Arie", "alien", "Ariel". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "adieu"?
The IPA (International Phonetic Alphabet) transcription for "adieu" is /əˈdju/. 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 "adieu"?
From Middle English adieu also adew, adewe, adue, from Old French adieu (“to God”), a shortening of a Dieu vous comant (“I commend you to God”), from Medieval Latin ad Deum (“to God”). Doublet of adios. 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 “adieu”

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

  • The one correct English spelling is A-D-I-E-U - every other letter order is a misspelling in standard orthography.
  • Say it as /əˈdju/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “Arie” - see the side-by-side comparison. adieu vs Arie
  • 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