obtervsontemWhich spelling fits?

Quick tell: obter is a verb, ontem is an adverb, so they fill different roles in a sentence.

Which to use

“obter” is a verb and “ontem” is an adverb - they look or sound alike but fill different roles in a sentence.

#1,442
“obter” frequency rank
#525
“ontem” frequency rank
1967
confusion score

Side-by-Side Comparison

Feature obter ontem
Definition alcançar o que se desejava ou pedia no dia anterior ao de hoje

Where the eye mixes obter and ontem

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. obter and ontem follow the identical consonant-vowel pattern (VCCVC). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
obter
5 ch
ontem

Look-alike desk: obter vs ontem

These two trip readers on the page rather than in the ear: obter is /ɔ.bˈteɾ/ while ontem is /ˈõ.tɐ̃j̃/. 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 (verb vs adverb), which is usually the fastest check. Our composite confusion score for this pair is 1967, derived from the frequency rank of both members and their visual similarity.

obter is recorded at frequency rank #1,442, classified as averb, pronounced /ɔ.bˈteɾ/. ontem is at rank #525, tagged as anadv, pronounced /ˈõ.tɐ̃j̃/.

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 1967, this pair ranks #73,539 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of obter vs ontem

Shared letters: eot. Private to "obter": br. Private to "ontem": mn.

"obter" · 5 letters · shape VCCVC  ·  "ontem" · 5 letters · shape VCCVC

Known mistypes of this pair

  • obter ← boter · obbter · obetr · obterr · obtre · obtter · otber
  • ontem ← notem · onetm · onntem · ontemm · ontme · onttem · otnem

Frequently Asked Questions

Do "obter" and "ontem" mean the same thing in a sentence?
No - they are not even the same part of speech. "obter" is a verb and "ontem" an adverb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "obter" vs "ontem" - which ranks higher?
"ontem" is the more common of the two: it sits at frequency rank #525 in our Portuguese list, against #1,442 for "obter". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "obter" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ontem" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #73,539 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "obter" and "ontem" also get mixed up with nearby pairs, the highest-scored neighbour is "ontem vs outrem". 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 #73,539 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