okvsonConfusable pair

Which to use

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

#1,645
“ok” frequency rank
#1,908
“on” frequency rank
3553
confusion score

Side-by-Side Comparison

Feature ok on
Definition Ocho. Diez.

Where the eye mixes ok and on

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

2 ch
ok
2 ch
on

Why the eye confuses ok with on

A purely visual mix-up. ok (/ˈok/) and on ([ˈon]) 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 a single letter - k in “ok” becomes n in “on”. Our composite confusion score for this pair is 3553, derived from the frequency rank of both members and their visual similarity.

ok is recorded at frequency rank #1,645, classified as anum, pronounced /ˈok/. on is at rank #1,908, tagged as anum, pronounced [ˈon].

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 3553, this pair ranks #318,064 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ok vs on

Shared letters: o. Private to "ok": k. Private to "on": n.

"ok" · 2 letters · shape VC  ·  "on" · 2 letters · shape VC

Frequently Asked Questions

Can "ok" and "on" be used interchangeably?
No. They are said differently (/ˈok/ versus [ˈon]) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "ok" or "on"?
"ok" is the more common of the two: it sits at frequency rank #1,645 in our Spanish list, against #1,908 for "on". 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 "ok" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "on" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #318,064 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "ok" and "on" also get mixed up with nearby pairs, the highest-scored neighbour is "oían vs on". Nearby pair

Confusion rank #318,064 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