omovsoneWhat's the difference?

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

Which to use

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

#40,711
“omo” frequency rank
#1,219
“one” frequency rank
41930
confusion score

Side-by-Side Comparison

Feature omo one
Definition ohm, unidade de medida de resistência elétrica no Sistema Internacional de Unidades (SI) único:

Where the eye mixes omo and one

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
omo
3 ch
one

Why the eye confuses omo with one

These two trip readers on the page rather than in the ear: omo is /ˈo.mo/, /ˈɔ.mɔ/ while one is /ˈwɐn/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 41930, derived from the frequency rank of both members and their visual similarity.

omo is recorded at frequency rank #40,711, classified as anoun, pronounced /ˈo.mo/, /ˈɔ.mɔ/. one is at rank #1,219, tagged as anadj, pronounced /ˈwɐn/.

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 41930, this pair ranks #23,918 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of omo vs one

Shared letters: o. Private to "omo": m. Private to "one": en.

"omo" · 3 letters · shape VCV  ·  "one" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "omo" for "one" ever safe?
No - they are not even the same part of speech. "omo" is a noun and "one" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "omo" vs "one" - which ranks higher?
"one" is the more common of the two: it sits at frequency rank #1,219 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

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "omo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "one" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #23,918 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "omo" and "one" also get mixed up with nearby pairs, the highest-scored neighbour is "omo vs oni". Nearby pair

Confusion rank #23,918 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