oitovsóxidoWhat's the difference?

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

Which to use

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

#1,099
“oito” frequency rank
#22,506
“óxido” frequency rank
23605
confusion score

Side-by-Side Comparison

Feature oito óxido
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) designação genérica dos compostos químicos binários formados por átomos de oxigênio e outros elementos, onde o oxigênio é mais eletronegativo

Where the spellings diverge

Shared letters are muted; the letters that actually set oito and óxido apart are highlighted. They share 2 letters in sequence, which is exactly why the eye skips the difference.

4 ch
oito
5 ch
óxido

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: oito is /ˈoj.tu/ while óxido is /ˈɔ.ksi.du/. 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 23605, 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/. óxido is at rank #22,506, tagged as anoun, pronounced /ˈɔ.ksi.du/.

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 23605, this pair ranks #46,195 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of oito vs óxido

Shared letters: io. Private to "oito": t. Private to "óxido": dxó.

"oito" · 4 letters · shape VVCV  ·  "óxido" · 5 letters · shape VCVCV

Known mistypes of this pair

  • oitoioto · oiot · oitto · otio

Frequency comparison

oito#1,099
óxido#22,506

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "oito" and "óxido" be used interchangeably?
No - they are not even the same part of speech. "oito" is an adjective and "óxido" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "oito" or "óxido"?
"oito" is the more common of the two: it sits at frequency rank #1,099 in our Portuguese list, against #22,506 for "óxido". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering oito vs óxido

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “oito”; for a noun, it's “óxido”.
  • 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

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list