JoãovsjonWhat's the difference?

Quick tell: João is a name, jon is a preposition, so they fill different roles in a sentence.

Which to use

“João” is a name and “jon” is a preposition - they look or sound alike but fill different roles in a sentence.

#41,851
“João” frequency rank
#10,345
“jon” frequency rank
52196
confusion score

Side-by-Side Comparison

Feature João jon
Definition Prénom masculin portugais. Par, sur, multiplié par, fois.

Where the eye mixes João and jon

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

4 ch
João
3 ch
jon

Why the eye confuses João with jon

These two trip readers on the page rather than in the ear: João is \ʒo.ɑ̃\ while jon is \ʒɔn\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (name vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 52196, derived from the frequency rank of both members and their visual similarity.

João is recorded at frequency rank #41,851, classified as aname, pronounced \ʒo.ɑ̃\. jon is at rank #10,345, tagged as aprep, pronounced \ʒɔn\.

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 52196, this pair ranks #149,414 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of João vs jon

Shared letters: jo. Private to "João": ã. Private to "jon": n.

"João" · 4 letters · shape CVVV  ·  "jon" · 3 letters · shape CVC

Frequently Asked Questions

Can "João" and "jon" be used interchangeably?
No - they are not even the same part of speech. "João" is a name and "jon" a preposition, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "João" or "jon"?
"jon" is the more common of the two: it sits at frequency rank #10,345 in our French list, against #41,851 for "João". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "João" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "jon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #149,414 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "João" and "jon" also get mixed up with nearby pairs, the highest-scored neighbour is "João vs jor". Nearby pair

Confusion rank #149,414 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list