opvsoppoWhich spelling fits?

Which to use

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

#3,516
“op” frequency rank
#42,308
“oppo” frequency rank
45824
confusion score

Side-by-Side Comparison

Feature op oppo
Definition Clipping of opponent. A friend, associate or colleague.

Where the eye mixes op and oppo

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

2 ch
op
4 ch
oppo

Visual trap between op and oppo

A purely visual mix-up. op (/ɒp/) and oppo (/ˈɒ.pəʊ/) 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 2 extra letter(s) - “op” sits inside “oppo”. Our composite confusion score for this pair is 45824, derived from the frequency rank of both members and their visual similarity.

op is recorded at frequency rank #3,516, classified as anoun, pronounced /ɒp/. oppo is at rank #42,308, tagged as anoun, pronounced /ˈɒ.pəʊ/.

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 45824, this pair ranks #217,584 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of op vs oppo

Shared letters: op. Private to "op": -. Private to "oppo": -.

"op" · 2 letters · shape VC  ·  "oppo" · 4 letters · shape VCCV

Known mistypes of this pair

Frequently Asked Questions

Do "op" and "oppo" mean the same thing in a sentence?
No. They are said differently (/ɒp/ versus /ˈɒ.pəʊ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "op" vs "oppo" - which ranks higher?
"op" is the more common of the two: it sits at frequency rank #3,516 in our English list, against #42,308 for "oppo". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "op" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "oppo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #217,584 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "op" and "oppo" also get mixed up with nearby pairs, the highest-scored neighbour is "oppo vs OTP". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #217,584 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