obvsogWhich spelling fits?

Which to use

“ob” and “og” are a confusable Spanish pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#30,601
“ob” frequency rank
#36,189
“og” frequency rank
66790
confusion score

Side-by-Side Comparison

Feature ob og
Definition Si. Y.

Where the eye mixes ob and og

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch
ob
2 ch
og

Why the eye confuses ob with og

A purely visual mix-up. ob ([ɔp]) and og ([ʌ]) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by a single letter - b in “ob” becomes g in “og”. Our composite confusion score for this pair is 66790, derived from the frequency rank of both members and their visual similarity.

ob is recorded at frequency rank #30,601, classified as aconj, pronounced [ɔp]. og is at rank #36,189, tagged as aconj, pronounced [ʌ].

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 66790, this pair ranks #38,878 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of ob vs og

Shared letters: o. Private to "ob": b. Private to "og": g.

"ob" · 2 letters · shape VC  ·  "og" · 2 letters · shape VC

Frequently Asked Questions

Is swapping "ob" for "og" ever safe?
No. They are said differently ([ɔp] versus [ʌ]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Spanish text, does "ob" or "og" show up more?
"ob" is the more common of the two: it sits at frequency rank #30,601 in our Spanish list, against #36,189 for "og". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "ob" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "og" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #38,878 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ob" and "og" also get mixed up with nearby pairs, the highest-scored neighbour is "og vs ome". Nearby pair

Confusion rank #38,878 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list