armavsArosaWhich spelling fits?

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

Which to use

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

#48,716
“arma” frequency rank
#49,478
“Arosa” frequency rank
98194
confusion score

Side-by-Side Comparison

Feature arma Arosa
Definition Waffe; Mittel, das dazu geeignet ist, Lebewesen in ihrer Handlungsfähigkeit zu beeinträchtigen oder handlungsunfähig zu machen, physisch oder psychisch zu verletzen oder zu töten Name eines Ortes in der Schweiz

Where the eye mixes arma and Arosa

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

4 ch
arma
5 ch
Arosa

Look-alike desk: arma vs Arosa

These two trip readers on the page rather than in the ear: arma is [ˈarma] while Arosa is [aˈʁoːzaː]. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 98194, derived from the frequency rank of both members and their visual similarity.

arma is recorded at frequency rank #48,716, classified as anoun, pronounced [ˈarma]. Arosa is at rank #49,478, tagged as aname, pronounced [aˈʁoːzaː].

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 98194, this pair ranks #1,868 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of arma vs Arosa

Shared letters: ar. Private to "arma": m. Private to "Arosa": os.

"arma" · 4 letters · shape VCCV  ·  "Arosa" · 5 letters · shape VCVCV

Known mistypes of this pair

  • armaaram · armma · arrma
  • Arosaaorsa · aroas · arossa · arrosa · arsoa · raosa

Frequently Asked Questions

Can "arma" and "Arosa" be used interchangeably?
No - they are not even the same part of speech. "arma" is a noun and "Arosa" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "arma" or "Arosa" show up more?
"arma" is the more common of the two: it sits at frequency rank #48,716 in our German list, against #49,478 for "Arosa". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "arma" and "Arosa" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "arma" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Arosa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,868 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "arma" and "Arosa" also get mixed up with nearby pairs, the highest-scored neighbour is "aloha vs Arosa". 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 #1,868 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