do vs dos, What's the Difference?

Which to use

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

#2,819
“do” frequency rank: #961
“dos” frequency rank: 3780
confusion score

Side-by-Side Comparison

Feature	do	dos
Definition	Première note de la gamme.	Partie du corps humain située au-dessus du postérieur, depuis le cou jusqu’aux reins.

Same sound, different letters: do vs dos

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 2 letters.

2 ch

3 ch

dos

Homophone desk: do vs dos

This is the hard kind. do and dos are pronounced identically (\do\) and both work as anoun. Neither the ear nor the grammar will rescue you; only the meaning does, so the glosses below are the whole decision. They differ by 1 extra letter(s) - “do” sits inside “dos”. Our composite confusion score for this pair is 3780, 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\. dos is at rank #961, tagged as anoun, pronounced \do\.

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 3780, this pair ranks #433,207 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of do vs dos

Shared letters: do. Private to "do": -. Private to "dos": s.

"do" · 2 letters · shape CV · "dos" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "do" for "dos" ever safe?

No. They are pronounced the same (\do\), which is exactly why they get swapped in writing, but the dictionary meanings above are different, and pronunciation is no guide here.

Which is more common, "do" or "dos"?

"dos" is the more common of the two: it sits at frequency rank #961 in our French list, against #2,819 for "do". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

"do" and "dos" share a sound, keep the gloss open, then jump to the headword or a nearby trap.

Full dictionary entry for "do" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "dos" - compare definitions side by side with the headword page. Word entry
This pair ranks #433,207 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
"do" and "dos" also get mixed up with nearby pairs, the highest-scored neighbour is "DCI vs do". Nearby pair

Confusion rank #433,207 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.