onivsopsWhich spelling fits?

Which to use

“oni” and “ops” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#36,267
“oni” frequency rank
#9,639
“ops” frequency rank
45906
confusion score

Side-by-Side Comparison

Feature oni ops
Definition A Japanese evil spirit or demon. operations

Letter map: oni vs ops

Shared letters muted; letters that set oni and ops apart highlighted. Shared run: 1.

3 ch
oni
3 ch
ops

Spelling & dictionary notes on oni vs ops

oni and ops are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 45906, derived from the frequency rank of both members and their visual similarity.

oni is recorded at frequency rank #36,267, classified as anoun, pronounced /ˈəʊni/. ops is at rank #9,639, tagged as anoun.

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 45906, this pair ranks #216,803 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of oni vs ops

Shared letters: o. Private to "oni": in. Private to "ops": ps.

"oni" · 3 letters · shape VCV  ·  "ops" · 3 letters · shape VCC

Frequently Asked Questions

Do "oni" and "ops" mean the same thing in a sentence?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "oni" vs "ops" - which ranks higher?
"ops" is the more common of the two: it sits at frequency rank #9,639 in our English list, against #36,267 for "oni". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Done with this confusable. These links stay specific to "oni" and "ops".

  • Full dictionary entry for "oni" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ops" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #216,803 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "oni" and "ops" also get mixed up with nearby pairs, the highest-scored neighbour is "omi vs oni". Nearby pair

Confusion rank #216,803 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