onzavsonzasTell them apart

Which to use

“onza” and “onzas” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#36,194
“onza” frequency rank
#31,469
“onzas” frequency rank
67663
confusion score

Side-by-Side Comparison

Feature onza onzas
Definition Unidad de masa, equivalente a 28,7 g. o a 1/16 de libra. Forma del plural de onza.

Where the eye mixes onza and onzas

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

4 ch
onza
5 ch
onzas

Why the eye confuses onza with onzas

A purely visual mix-up. onza ([ˈõnsa]) and onzas ([ˈõnsas]) 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 extra letter(s) - “onza” sits inside “onzas”. Our composite confusion score for this pair is 67663, derived from the frequency rank of both members and their visual similarity.

onza is recorded at frequency rank #36,194, classified as anoun, pronounced [ˈõnsa]. onzas is at rank #31,469, tagged as anoun, pronounced [ˈõnsas].

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 67663, this pair ranks #36,554 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of onza vs onzas

Shared letters: anoz. Private to "onza": -. Private to "onzas": s.

"onza" · 4 letters · shape VCCV  ·  "onzas" · 5 letters · shape VCCVC

Known mistypes of this pair

  • onza ← noza · onaz · onnza · onzza
  • onzas ← nozas · onazs · onnzas · onzass · onzsa · onzzas

Frequently Asked Questions

Do "onza" and "onzas" mean the same thing in a sentence?
No. They are said differently ([ˈõnsa] versus [ˈõnsas]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "onza" or "onzas"?
"onzas" is the more common of the two: it sits at frequency rank #31,469 in our Spanish list, against #36,194 for "onza". 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 "onza" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "onzas" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #36,554 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "onza" and "onzas" also get mixed up with nearby pairs, the highest-scored neighbour is "oirá vs onza". 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 #36,554 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list