AarevsarcTell them apart

Quick tell: Aare is a name, arc is a noun, so they fill different roles in a sentence.

Which to use

“Aare” is a name and “arc” is a noun - they look or sound alike but fill different roles in a sentence.

#47,177
“Aare” frequency rank
#23,421
“arc” frequency rank
70598
confusion score

Side-by-Side Comparison

Feature Aare arc
Definition größter Nebenfluss des Rheins, längster Schweizer Fluss, durchfließt das gesamte westliche Mittelland der Bogen

Where the eye mixes Aare and arc

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

4 ch
Aare
3 ch
arc

Why the eye confuses Aare with arc

These two trip readers on the page rather than in the ear: Aare is [ˈaːʁə] while arc is [aʁk]. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 70598, derived from the frequency rank of both members and their visual similarity.

Aare is recorded at frequency rank #47,177, classified as aname, pronounced [ˈaːʁə]. arc is at rank #23,421, tagged as anoun, pronounced [aʁk].

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 70598, this pair ranks #441,444 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of Aare vs arc

Shared letters: ar. Private to "Aare": e. Private to "arc": c.

"Aare" · 4 letters · shape VVCV  ·  "arc" · 3 letters · shape VCC

Known mistypes of this pair

  • Aareaaer · aarre

Frequently Asked Questions

Is swapping "Aare" for "arc" ever safe?
No - they are not even the same part of speech. "Aare" is a name and "arc" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "Aare" or "arc" show up more?
"arc" is the more common of the two: it sits at frequency rank #23,421 in our German list, against #47,177 for "Aare". 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 "Aare" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arc" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #441,444 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "Aare" and "arc" also get mixed up with nearby pairs, the highest-scored neighbour is "Aare vs Atze". 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 #441,444 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