OvsomWhich spelling fits?

Quick tell: O is a symbol, om is a pronoun, so they fill different roles in a sentence.

Which to use

“O” is a symbol and “om” is a pronoun - they look or sound alike but fill different roles in a sentence.

#807
“O” frequency rank
#7,092
“om” frequency rank
7899
confusion score

Side-by-Side Comparison

Feature O om
Definition En logique, symbole de la proposition particulière négative. On.

Letter map: O vs om

Shared letters muted; letters that set O and om apart highlighted. Shared run: 1.

1 ch
O
2 ch
om

Part-of-speech tell for O / om

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: O is asymbol and omapronoun. On the page they differ by 1 extra letter(s) - “O” sits inside “om”. Our composite confusion score for this pair is 7899, derived from the frequency rank of both members and their visual similarity.

O is recorded at frequency rank #807, classified as asymbol. om is at rank #7,092, tagged as apron.

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 7899, this pair ranks #421,790 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of O vs om

Shared letters: o. Private to "O": -. Private to "om": m.

"O" · 1 letters · shape V  ·  "om" · 2 letters · shape VC

Frequently Asked Questions

Can "O" and "om" be used interchangeably?
No - they are not even the same part of speech. "O" is a symbol and "om" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "O" or "om"?
"O" is the more common of the two: it sits at frequency rank #807 in our French list, against #7,092 for "om". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've compared "O" and "om". Here's where to go from here.

  • Full dictionary entry for "O" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "om" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #421,790 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "O" and "om" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs om". Nearby pair

Confusion rank #421,790 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list