AarvsAlanWhich spelling fits?

Which to use

“Aar” and “Alan” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#45,768
“Aar” frequency rank
#3,275
“Alan” frequency rank
49043
confusion score

Side-by-Side Comparison

Feature Aar Alan
Definition A river in Switzerland, flowing 292 km from the glaciers of the Bernese Alps into the Rhine at Koblenz, on the Swiss–German border. A male given name from the Celtic languages.

Where the eye mixes Aar and Alan

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

3 ch
Aar
4 ch
Alan

Visual trap between Aar and Alan

A purely visual mix-up. Aar (/ɑɹ/) and Alan (/ˈæl.ən/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 49043, derived from the frequency rank of both members and their visual similarity.

Aar is recorded at frequency rank #45,768, classified as aname, pronounced /ɑɹ/. Alan is at rank #3,275, tagged as aname, pronounced /ˈæl.ən/.

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 49043, this pair ranks #187,383 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Aar vs Alan

Shared letters: a. Private to "Aar": r. Private to "Alan": ln.

"Aar" · 3 letters · shape VVC  ·  "Alan" · 4 letters · shape VCVC

Known mistypes of this pair

  • Alanaaln · alann · alna · laan

Frequently Asked Questions

Is swapping "Aar" for "Alan" ever safe?
No. They are said differently (/ɑɹ/ versus /ˈæl.ən/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "Aar" or "Alan" show up more?
"Alan" is the more common of the two: it sits at frequency rank #3,275 in our English list, against #45,768 for "Aar". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "Aar" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Alan" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #187,383 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Aar" and "Alan" also get mixed up with nearby pairs, the highest-scored neighbour is "Aar vs amb". 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 #187,383 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list