dovsduoWhat's the difference?

Which to use

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

#2,819
“do” frequency rank
#3,839
“duo” frequency rank
6658
confusion score

Side-by-Side Comparison

Feature do duo
Definition Première note de la gamme. Morceau de musique fait pour être chanté par deux voix ou exécuté par deux instruments.

Where the eye mixes do and duo

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

2 ch
do
3 ch
duo

Look-alike desk: do vs duo

A purely visual mix-up. do (\do\) and duo (\dɥɔ\) 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 6658, derived from the frequency rank of both members and their visual similarity.

do is recorded at frequency rank #2,819, classified as anoun, pronounced \do\. duo is at rank #3,839, tagged as anoun, pronounced \dɥɔ\.

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 6658, this pair ranks #425,612 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of do vs duo

Shared letters: do. Private to "do": -. Private to "duo": u.

"do" · 2 letters · shape CV  ·  "duo" · 3 letters · shape CVV

Frequently Asked Questions

Can "do" and "duo" be used interchangeably?
No. They are said differently (\do\ versus \dɥɔ\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "do" or "duo"?
"do" is the more common of the two: it sits at frequency rank #2,819 in our French list, against #3,839 for "duo". 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 "do" and "duo" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "do" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "duo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #425,612 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "do" and "duo" also get mixed up with nearby pairs, the highest-scored neighbour is "DCI vs duo". Nearby pair

Confusion rank #425,612 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