archvsarmaWhich spelling fits?

Which to use

“arch” and “arma” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#23,829
“arch” frequency rank
#48,716
“arma” frequency rank
72545
confusion score

Side-by-Side Comparison

Feature arch arma
Definition Bogen Waffe; Mittel, das dazu geeignet ist, Lebewesen in ihrer Handlungsfähigkeit zu beeinträchtigen oder handlungsunfähig zu machen, physisch oder psychisch zu verletzen oder zu töten

Where the eye mixes arch and arma

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. arch (VCCC) and arma (VCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

4 ch
arch
4 ch
arma

Why the eye confuses arch with arma

A purely visual mix-up. arch ([ɑːtʃ]) and arma ([ˈarma]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 72545, derived from the frequency rank of both members and their visual similarity.

arch is recorded at frequency rank #23,829, classified as anoun, pronounced [ɑːtʃ]. arma is at rank #48,716, tagged as anoun, pronounced [ˈarma].

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 72545, this pair ranks #385,360 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of arch vs arma

Shared letters: ar. Private to "arch": ch. Private to "arma": m.

"arch" · 4 letters · shape VCCC  ·  "arma" · 4 letters · shape VCCV

Known mistypes of this pair

  • arch ← acrh · arcch · archh · arhc · arrch · rach
  • arma ← aram · armma · arrma

Frequently Asked Questions

Is swapping "arch" for "arma" ever safe?
No. They are said differently ([ɑːtʃ] versus [ˈarma]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "arch" or "arma"?
"arch" is the more common of the two: it sits at frequency rank #23,829 in our German list, against #48,716 for "arma". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "arch" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arma" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #385,360 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "arch" and "arma" also get mixed up with nearby pairs, the highest-scored neighbour is "arma 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 #385,360 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