oba vs on, What's the Difference?

Which to use

“oba” is a num and “on” is an adjective - they look or sound alike but fill different roles in a sentence.

#20,674
“oba” frequency rank: #675
“on” frequency rank: 21349
confusion score

Side-by-Side Comparison

Feature	oba	on
Definition	ambos, um e outro, uma e outra	ligado, ativo (na internet)

Letter map: oba vs on

Shared letters muted; letters that set oba and on apart highlighted. Shared run: 1.

3 ch

oba

2 ch

Role in the sentence - oba and on

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: oba is anum and onanadjective. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 21349, derived from the frequency rank of both members and their visual similarity.

oba is recorded at frequency rank #20,674, classified as anum, pronounced /ˈʔɔba/ ouvir^(fonte ?). on is at rank #675, tagged as anadj.

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 21349, this pair ranks #48,954 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of oba vs on

Shared letters: o. Private to "oba": ab. Private to "on": n.

"oba" · 3 letters · shape VCV · "on" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "oba" for "on" ever safe?

No - they are not even the same part of speech. "oba" is a num and "on" an adjective, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "oba" vs "on" - which ranks higher?

"on" is the more common of the two: it sits at frequency rank #675 in our Portuguese list, against #20,674 for "oba". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "oba" and "on". Here's where to go from here.

Full dictionary entry for "oba" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "on" - compare definitions side by side with the headword page. Word entry
This pair ranks #48,954 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"oba" and "on" also get mixed up with nearby pairs, the highest-scored neighbour is "oba vs oni". Nearby pair

Confusion rank #48,954 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.