adieuvsAlienWhat's the difference?

Quick tell: adieu is a intj, Alien is a noun, so they fill different roles in a sentence.

Which to use

“adieu” is an intj and “Alien” is a noun - they look or sound alike but fill different roles in a sentence.

#25,875
“adieu” frequency rank
#13,759
“Alien” frequency rank
39634
confusion score

Side-by-Side Comparison

Feature adieu Alien
Definition Abschiedsgruß außerirdisches Lebewesen

Where the eye mixes adieu and Alien

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
adieu
5 ch
Alien

Why the eye confuses adieu with Alien

These two trip readers on the page rather than in the ear: adieu is [aˈdjøː] while Alien is [ˈɛɪ̯liən]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (intj vs noun), which is usually the fastest check. Our composite confusion score for this pair is 39634, derived from the frequency rank of both members and their visual similarity.

adieu is recorded at frequency rank #25,875, classified as anintj, pronounced [aˈdjøː]. Alien is at rank #13,759, tagged as anoun, pronounced [ˈɛɪ̯liən].

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 39634, this pair ranks #1,531,255 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of adieu vs Alien

Shared letters: aei. Private to "adieu": du. Private to "Alien": ln.

"adieu" · 5 letters · shape VCVVV  ·  "Alien" · 5 letters · shape VCVVC

Known mistypes of this pair

  • adieuaddieu · adeiu · adiue · aideu · daieu
  • Alienailen · alienn · aline

Frequently Asked Questions

Do "adieu" and "Alien" mean the same thing in a sentence?
No - they are not even the same part of speech. "adieu" is an intj and "Alien" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "adieu" vs "Alien" - which ranks higher?
"Alien" is the more common of the two: it sits at frequency rank #13,759 in our German list, against #25,875 for "adieu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "adieu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Alien" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,531,255 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "adieu" and "Alien" also get mixed up with nearby pairs, the highest-scored neighbour is "added vs adieu". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #1,531,255 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list