Which to use
“onza” is a noun and “oz” is an abbrev - they look or sound alike but fill different roles in a sentence.
- #36,194
- “onza” frequency rank
- #16,661
- “oz” frequency rank
- 52855
- confusion score
Side-by-Side Comparison
| Feature | onza | oz |
|---|---|---|
| Definition | Unidad de masa, equivalente a 28,7 g. o a 1/16 de libra. | Abreviatura de ounce ('onza'). |
Where the eye mixes onza and oz
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: onza vs oz
These two trip readers on the page rather than in the ear: onza is [ˈõnsa] while oz is /aʊns/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs abbrev), which is usually the fastest check. Our composite confusion score for this pair is 52855, 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]. oz is at rank #16,661, tagged as anabbrev, pronounced /aʊns/.
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 52855, this pair ranks #90,674 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of onza vs oz
Shared letters: oz. Private to "onza": an. Private to "oz": -.
"onza" · 4 letters · shape VCCV · "oz" · 2 letters · shape VC
Known mistypes of this pair
- onza ← noza · onaz · onnza · onzza
Frequently Asked Questions
Is swapping "onza" for "oz" ever safe?
Which is more common, "onza" or "oz"?
After this comparison
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 "oz" - compare definitions side by side with the headword page. Word entry
- This pair ranks #90,674 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "onza" and "oz" 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 #90,674 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.