aresvsarmWhich spelling fits?

Quick tell: ares is a noun, arm is an adjective, so they fill different roles in a sentence.

Which to use

“ares” is a noun and “arm” is an adjective - they look or sound alike but fill different roles in a sentence.

#10,309
“ares” frequency rank
#27,355
“arm” frequency rank
37664
confusion score

Side-by-Side Comparison

Feature ares arm
Definition atmosfera, ar pobre

Letter map: ares vs arm

Shared letters muted; letters that set ares and arm apart highlighted. Shared run: 2.

4 ch
ares
3 ch
arm

Grammar separator: ares vs arm

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ares is anoun and armanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 37664, derived from the frequency rank of both members and their visual similarity.

ares is recorded at frequency rank #10,309, classified as anoun. arm is at rank #27,355, tagged as anadj, pronounced /aʁm/ ouvir^(fonte ?).

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 37664, this pair ranks #28,908 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ares vs arm

Shared letters: ar. Private to "ares": es. Private to "arm": m.

"ares" · 4 letters · shape VCVC  ·  "arm" · 3 letters · shape VCC

Known mistypes of this pair

  • aresaers · aress · arres · arse · raes

Frequently Asked Questions

Is swapping "ares" for "arm" ever safe?
No - they are not even the same part of speech. "ares" is a noun and "arm" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "ares" vs "arm" - which ranks higher?
"ares" is the more common of the two: it sits at frequency rank #10,309 in our Portuguese list, against #27,355 for "arm". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "ares" vs "arm" is on the table, pick a follow-up below.

  • Full dictionary entry for "ares" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arm" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #28,908 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ares" and "arm" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs arm". 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 #28,908 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list