oitovsomoWhat's the difference?

Quick tell: oito is a adjective, omo is a noun, so they fill different roles in a sentence.

Which to use

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

#1,099
“oito” frequency rank
#40,711
“omo” frequency rank
41810
confusion score

Side-by-Side Comparison

Feature oito omo
Definition número equivalente a sete mais um; cardinalidade de um conjunto que contenha oito elementos distintos, representado pelo símbolo 8 (algarismos arábicos) ou VIII (algarismos romanos) ohm, unidade de medida de resistência elétrica no Sistema Internacional de Unidades (SI)

Where the eye mixes oito and omo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. oito runs 4 letters (VVCV) against omo's 3 (VCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
oito
3 ch
omo

Look-alike desk: oito vs omo

These two trip readers on the page rather than in the ear: oito is /ˈoj.tu/ while omo is /ˈo.mo/, /ˈɔ.mɔ/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 41810, derived from the frequency rank of both members and their visual similarity.

oito is recorded at frequency rank #1,099, classified as anadj, pronounced /ˈoj.tu/. omo is at rank #40,711, tagged as anoun, pronounced /ˈo.mo/, /ˈɔ.mɔ/.

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 41810, this pair ranks #24,065 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of oito vs omo

Shared letters: o. Private to "oito": it. Private to "omo": m.

"oito" · 4 letters · shape VVCV  ·  "omo" · 3 letters · shape VCV

Known mistypes of this pair

  • oito ← ioto · oiot · oitto · otio

Frequently Asked Questions

Do "oito" and "omo" mean the same thing in a sentence?
No - they are not even the same part of speech. "oito" is an adjective and "omo" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "oito" or "omo"?
"oito" is the more common of the two: it sits at frequency rank #1,099 in our Portuguese list, against #40,711 for "omo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "oito" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "omo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,065 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "oito" and "omo" also get mixed up with nearby pairs, the highest-scored neighbour is "omo vs oni". 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 #24,065 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