Which to use
“Arch” is a name and “army” is a noun - they look or sound alike but fill different roles in a sentence.
- #30,760
- “Arch” frequency rank
- #18,442
- “army” frequency rank
- 49202
- confusion score
Side-by-Side Comparison
| Feature | Arch | army |
|---|---|---|
| Definition | Apellido. | Ejército. |
Where the eye mixes Arch and army
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses Arch with army
These two trip readers on the page rather than in the ear: Arch is [ˈaɾt͡ʃ] while army is /ˈɑː.miː/. 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 (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 49202, derived from the frequency rank of both members and their visual similarity.
Arch is recorded at frequency rank #30,760, classified as aname, pronounced [ˈaɾt͡ʃ]. army is at rank #18,442, tagged as anoun, pronounced /ˈɑː.miː/.
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 49202, this pair ranks #110,164 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of Arch vs army
Shared letters: ar. Private to "Arch": ch. Private to "army": my.
"Arch" · 4 letters · shape VCCC · "army" · 4 letters · shape VCCV
Known mistypes of this pair
Frequently Asked Questions
Can "Arch" and "army" be used interchangeably?
Frequency check: "Arch" vs "army" - which ranks higher?
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 "army" - compare definitions side by side with the headword page. Word entry
- This pair ranks #110,164 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "Arch" and "army" also get mixed up with nearby pairs, the highest-scored neighbour is "Arch vs auch". 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 #110,164 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.