o'svsOmaWhich spelling fits?

Quick tell: o's is a noun, Oma is a name, so they fill different roles in a sentence.

Which to use

“o's” is a noun and “Oma” is a name - they look or sound alike but fill different roles in a sentence.

#30,902
“o's” frequency rank
#47,802
“Oma” frequency rank
78704
confusion score

Side-by-Side Comparison

Feature o's Oma
Definition plural of the letter o A township in Gêrzê County, Ngari prefecture, Tibet Autonomous Region, China.

Where the eye mixes o's and Oma

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. o's runs 2 letters (VC) against Oma's 3 (VCV) - the length gap alone is often enough to separate them once you know to check it.

3 ch
o's
3 ch
Oma

Visual trap between o's and Oma

These two trip readers on the page rather than in the ear: o's is /əʊz/ while Oma is /oʊ.mɑ/. 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 (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 78704, derived from the frequency rank of both members and their visual similarity.

o's is recorded at frequency rank #30,902, classified as anoun, pronounced /əʊz/. Oma is at rank #47,802, tagged as aname, pronounced /oʊ.mɑ/.

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 78704, this pair ranks #23,963 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of o's vs Oma

Shared letters: o. Private to "o's": s. Private to "Oma": am.

"o's" · 2 letters · shape VC  ·  "Oma" · 3 letters · shape VCV

Frequently Asked Questions

Can "o's" and "Oma" be used interchangeably?
No - they are not even the same part of speech. "o's" is a noun and "Oma" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "o's" or "Oma"?
"o's" is the more common of the two: it sits at frequency rank #30,902 in our English list, against #47,802 for "Oma". 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 "o's" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Oma" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #23,963 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "o's" and "Oma" also get mixed up with nearby pairs, the highest-scored neighbour is "Oma vs omi". Nearby pair

Confusion rank #23,963 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list