obvsomeWhich spelling fits?

Quick tell: ob is a conjunction, ome is a num, so they fill different roles in a sentence.

Which to use

“ob” is a conjunction and “ome” is a num - they look or sound alike but fill different roles in a sentence.

#30,601
“ob” frequency rank
#46,700
“ome” frequency rank
77301
confusion score

Side-by-Side Comparison

Feature ob ome
Definition Si. Dos.

Where the eye mixes ob and ome

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

2 ch
ob
3 ch
ome

Why the eye confuses ob with ome

These two trip readers on the page rather than in the ear: ob is [ɔp] while ome is [ˈoː.me]. 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 (conjunction vs num), which is usually the fastest check. Our composite confusion score for this pair is 77301, 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]. ome is at rank #46,700, tagged as anum, pronounced [ˈoː.me].

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 77301, this pair ranks #16,244 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.

Orthographic DNA of ob vs ome

Shared letters: o. Private to "ob": b. Private to "ome": em.

"ob" · 2 letters · shape VC  ·  "ome" · 3 letters · shape VCV

Frequently Asked Questions

Do "ob" and "ome" mean the same thing in a sentence?
No - they are not even the same part of speech. "ob" is a conjunction and "ome" a num, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "ob" or "ome"?
"ob" is the more common of the two: it sits at frequency rank #30,601 in our Spanish list, against #46,700 for "ome". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "ob" and "ome" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "ob" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ome" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #16,244 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ob" and "ome" also get mixed up with nearby pairs, the highest-scored neighbour is "oli vs ome". Nearby pair

Confusion rank #16,244 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