Which to use
“on” is a num and “OTAN” is a name - they look or sound alike but fill different roles in a sentence.
- #1,908
- “on” frequency rank
- #9,167
- “OTAN” frequency rank
- 11075
- confusion score
Side-by-Side Comparison
| Feature | on | OTAN |
|---|---|---|
| Definition | Diez. | Organización internacional política y militar creada como resultado de las negociaciones entre los signatarios del Tratado de Bruselas (Bélgica, Francia, Luxemburgo, Holanda y el Reino Unido), Estados Unidos y Canadá, así como otros cinco países de Europa Occidental invitados a participar (Dinamarca, Italia, Islandia, Noruega y Portugal), con el objetivo de organizar Europa ante la amenaza de la Unión Soviética después de la Segunda Guerra Mundial. |
Where the eye mixes on and OTAN
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses on with OTAN
These two trip readers on the page rather than in the ear: on is [ˈon] while OTAN is [ˈot̪ãn]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (num vs name), which is usually the fastest check. Our composite confusion score for this pair is 11075, derived from the frequency rank of both members and their visual similarity.
on is recorded at frequency rank #1,908, classified as anum, pronounced [ˈon]. OTAN is at rank #9,167, tagged as aname, pronounced [ˈot̪ãn].
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 11075, this pair ranks #296,364 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of on vs OTAN
Shared letters: no. Private to "on": -. Private to "OTAN": at.
"on" · 2 letters · shape VC · "OTAN" · 4 letters · shape VCVC
Known mistypes of this pair
- OTAN ← oatn · otann · otna · ottan · toan
Frequently Asked Questions
Do "on" and "OTAN" mean the same thing in a sentence?
In ordinary Spanish text, does "on" or "OTAN" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "on" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "OTAN" - compare definitions side by side with the headword page. Word entry
- This pair ranks #296,364 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "on" and "OTAN" also get mixed up with nearby pairs, the highest-scored neighbour is "oían vs OTAN". 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 #296,364 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.