odorvsoporTell them apart

Quick tell: odor is a noun, opor is a verb, so they fill different roles in a sentence.

Which to use

“odor” is a noun and “opor” is a verb - they look or sound alike but fill different roles in a sentence.

#16,128
“odor” frequency rank
#15,639
“opor” frequency rank
31767
confusion score

Side-by-Side Comparison

Feature odor opor
Definition impressão produzida no olfato pelas emanações voláteis dos corpos colocar uma coisa em frente de outra de maneira a formar obstáculo

Where the eye mixes odor and opor

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
odor
4 ch
opor

Why the eye confuses odor with opor

These two trip readers on the page rather than in the ear: odor is /ɔ.ˈdoɾ/ while opor is /ɔ.ˈpoɾ/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - d in “odor” becomes p in “opor”, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 31767, derived from the frequency rank of both members and their visual similarity.

odor is recorded at frequency rank #16,128, classified as anoun, pronounced /ɔ.ˈdoɾ/. opor is at rank #15,639, tagged as averb, pronounced /ɔ.ˈpoɾ/.

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 31767, this pair ranks #36,219 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of odor vs opor

Shared letters: or. Private to "odor": d. Private to "opor": p.

"odor" · 4 letters · shape VCVC  ·  "opor" · 4 letters · shape VCVC

Known mistypes of this pair

  • odoroddor · odorr · odro · oodr
  • oporoopr · oporr · oppor · opro · poor

Frequently Asked Questions

Do "odor" and "opor" mean the same thing in a sentence?
No - they are not even the same part of speech. "odor" is a noun and "opor" a verb, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "odor" or "opor" show up more?
"opor" is the more common of the two: it sits at frequency rank #15,639 in our Portuguese list, against #16,128 for "odor". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "odor" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "opor" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #36,219 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "odor" and "opor" also get mixed up with nearby pairs, the highest-scored neighbour is "oda vs odor". 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 #36,219 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