Which to use
“oito” is an adjective and “otto” is a num - they look or sound alike but fill different roles in a sentence.
- #1,099
- “oito” frequency rank
- #11,925
- “otto” frequency rank
- 13024
- confusion score
Side-by-Side Comparison
| Feature | oito | otto |
|---|---|---|
| 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) | oito (8, VIII) |
Where the spellings diverge
Shared letters are muted; the letters that actually set oito and otto apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: oito is /ˈoj.tu/ while otto is /ˈɔtto/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - i in “oito” becomes t in “otto”, and the parts of speech differ too (adjective vs num), which is usually the fastest check. Our composite confusion score for this pair is 13024, 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/. otto is at rank #11,925, tagged as anum, pronounced /ˈɔtto/.
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 13024, this pair ranks #59,413 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of oito vs otto
Shared letters: ot. Private to "oito": i. Private to "otto": -.
"oito" · 4 letters · shape VVCV · "otto" · 4 letters · shape VCCV
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "oito" and "otto" be used interchangeably?
Which is more common, "oito" or "otto"?
Remembering oito vs otto
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “oito”; for a num, it's “otto”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “oito” entry
- Browse more pairs most likely to be confused. Most confusable