onevsonuConfusable pair

Quick tell: one is a noun, onu is a pronoun, so they fill different roles in a sentence.

Which to use

“one” is a noun and “onu” is a pronoun - they look or sound alike but fill different roles in a sentence.

#2,436
“one” frequency rank
#4,259
“onu” frequency rank
6695
confusion score

Side-by-Side Comparison

Feature one onu
Definition (radiotéléphonie) Mot de code radiotéléphonique de l'OACI, OTAN et SIA pour le chiffre 1. Accusatif de o.

Where the eye mixes one and onu

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

3 ch
one
3 ch
onu

Look-alike desk: one vs onu

These two trip readers on the page rather than in the ear: one is \ˈwan\ while onu is \o.ˈnu\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “one” becomes u in “onu”, and the parts of speech differ too (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 6695, derived from the frequency rank of both members and their visual similarity.

one is recorded at frequency rank #2,436, classified as anoun, pronounced \ˈwan\. onu is at rank #4,259, tagged as apron, pronounced \o.ˈnu\.

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 6695, this pair ranks #425,508 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of one vs onu

Shared letters: no. Private to "one": e. Private to "onu": u.

"one" · 3 letters · shape VCV  ·  "onu" · 3 letters · shape VCV

Frequently Asked Questions

Can "one" and "onu" be used interchangeably?
No - they are not even the same part of speech. "one" is a noun and "onu" a pronoun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "one" or "onu" show up more?
"one" is the more common of the two: it sits at frequency rank #2,436 in our French list, against #4,259 for "onu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "one" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "onu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #425,508 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "one" and "onu" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs onu". Nearby pair

Confusion rank #425,508 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