achevsaçudeConfusable pair

Which to use

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

#9,947
“ache” frequency rank
#16,686
“açude” frequency rank
26633
confusion score

Side-by-Side Comparison

Feature ache açude
Definition dor, axe construção destinada a represar as águas de um rio

Where the eye mixes ache and açude

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. ache runs 4 letters (VCCV) against açude's 5 (VCVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
ache
5 ch
açude

Look-alike desk: ache vs açude

A purely visual mix-up. ache (/eɪk/) and açude (/ɐ.ˈsu.dɨ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 26633, derived from the frequency rank of both members and their visual similarity.

ache is recorded at frequency rank #9,947, classified as anoun, pronounced /eɪk/. açude is at rank #16,686, tagged as anoun, pronounced /ɐ.ˈsu.dɨ/.

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 26633, this pair ranks #42,477 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ache vs açude

Shared letters: ae. Private to "ache": ch. Private to "açude": duç.

"ache" · 4 letters · shape VCCV  ·  "açude" · 5 letters · shape VCVCV

Known mistypes of this pair

  • ache ← acche · aceh · achhe · ahce · cahe

Frequently Asked Questions

Do "ache" and "açude" mean the same thing in a sentence?
No. They are said differently (/eɪk/ versus /ɐ.ˈsu.dɨ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "ache" or "açude" show up more?
"ache" is the more common of the two: it sits at frequency rank #9,947 in our Portuguese list, against #16,686 for "açude". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "ache" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "açude" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #42,477 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "ache" and "açude" also get mixed up with nearby pairs, the highest-scored neighbour is "acid vs açude". 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 #42,477 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