achovsarchWhat's the difference?

Which to use

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

#148
“acho” frequency rank
#35,879
“arch” frequency rank
36027
confusion score

Side-by-Side Comparison

Feature acho arch
Definition primeira pessoa do presente do indicativo de achar. arquear, tomar a forma de um arco

Letter map: acho vs arch

Shared letters muted; letters that set acho and arch apart highlighted. Shared run: 3.

4 ch
acho
4 ch
arch

Corpus notes: acho and arch

acho and arch are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 36027, derived from the frequency rank of both members and their visual similarity.

acho is recorded at frequency rank #148, classified as averb, pronounced /ˈa.ʃo/. arch is at rank #35,879, tagged as averb.

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 36027, this pair ranks #30,876 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of acho vs arch

Shared letters: ach. Private to "acho": o. Private to "arch": r.

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

Known mistypes of this pair

  • achoaccho · achho · acoh · ahco · caho
  • archacrh · arcch · archh · arhc · arrch · rach

Frequently Asked Questions

Is swapping "acho" for "arch" ever safe?
No. They share most of their letters but differ in 3 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "acho" vs "arch" - which ranks higher?
"acho" is the more common of the two: it sits at frequency rank #148 in our Portuguese list, against #35,879 for "arch". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "acho" vs "arch" is on the table, pick a follow-up below.

  • Full dictionary entry for "acho" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "arch" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #30,876 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "acho" and "arch" also get mixed up with nearby pairs, the highest-scored neighbour is "acs vs arch". 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 #30,876 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