ondevsongWhat's the difference?

Which to use

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

#6,324
“onde” frequency rank
#6,860
“ong” frequency rank
13184
confusion score

Side-by-Side Comparison

Feature onde ong
Definition Ondulations d’un milieu élastique ou d’un flux électromagnétique. Perturbation d’un milieu qui se propage. Abeille (classificateur con).

Where the eye mixes onde and ong

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

4 ch
onde
3 ch
ong

Visual trap between onde and ong

A purely visual mix-up. onde (\ɔ̃d\) and ong (\ɔŋ˦\) 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 1 letter(s) in length. Our composite confusion score for this pair is 13184, derived from the frequency rank of both members and their visual similarity.

onde is recorded at frequency rank #6,324, classified as anoun, pronounced \ɔ̃d\. ong is at rank #6,860, tagged as anoun, pronounced \ɔŋ˦\.

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 13184, this pair ranks #402,081 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of onde vs ong

Shared letters: no. Private to "onde": de. Private to "ong": g.

"onde" · 4 letters · shape VCCV  ·  "ong" · 3 letters · shape VCC

Known mistypes of this pair

  • ondenode · odne · ondde · oned · onnde

Frequently Asked Questions

Do "onde" and "ong" mean the same thing in a sentence?
No. They are said differently (\ɔ̃d\ versus \ɔŋ˦\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "onde" or "ong"?
"onde" is the more common of the two: it sits at frequency rank #6,324 in our French list, against #6,860 for "ong". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Eye-level mix-up between "onde" and "ong" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "onde" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ong" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #402,081 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "onde" and "ong" also get mixed up with nearby pairs, the highest-scored neighbour is "och vs ong". 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 #402,081 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