airvsalsWhich spelling fits?

Quick tell: air is a noun, als is a conjunction, so they fill different roles in a sentence.

Which to use

“air” is a noun and “als” is a conjunction - they look or sound alike but fill different roles in a sentence.

#2,699
“air” frequency rank
#24
“als” frequency rank
2723
confusion score

Side-by-Side Comparison

Feature air als
Definition Luft, Atmosphäre, Luftraum der dem als folgende Part ist der mindere (weniger) oder der größere (mehr)

Where the eye mixes air and als

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
air
3 ch
als

Why the eye confuses air with als

These two trip readers on the page rather than in the ear: air is [ɛə(ɹ)] while als is [als]. 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 (noun vs conjunction), which is usually the fastest check. Our composite confusion score for this pair is 2723, derived from the frequency rank of both members and their visual similarity.

air is recorded at frequency rank #2,699, classified as anoun, pronounced [ɛə(ɹ)]. als is at rank #24, tagged as aconj, pronounced [als].

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 2723, this pair ranks #2,001,732 of 2,006,359 scored German confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of air vs als

Shared letters: a. Private to "air": ir. Private to "als": ls.

"air" · 3 letters · shape VVC  ·  "als" · 3 letters · shape VCC

Frequently Asked Questions

Is swapping "air" for "als" ever safe?
No - they are not even the same part of speech. "air" is a noun and "als" a conjunction, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "air" or "als" show up more?
"als" is the more common of the two: it sits at frequency rank #24 in our German list, against #2,699 for "air". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "air" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "als" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,001,732 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "air" and "als" also get mixed up with nearby pairs, the highest-scored neighbour is "air vs AUD". Nearby pair

Confusion rank #2,001,732 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