Which to use
“so” is an adverb and “sud” is a noun - they look or sound alike but fill different roles in a sentence.
- #4,187
- “so” frequency rank
- #439
- “sud” frequency rank
- 4626
- confusion score
Side-by-Side Comparison
| Feature | so | sud |
|---|---|---|
| Definition | Ainsi, comme ça. | Point cardinal opposé au nord ; direction du pôle de l’hémisphère austral et correspondant à l’azimut 180°. |
Where the eye mixes so and sud
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses so with sud
These two trip readers on the page rather than in the ear: so is \zoː\ while sud is \syd\. 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 (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 4626, derived from the frequency rank of both members and their visual similarity.
so is recorded at frequency rank #4,187, classified as anadv, pronounced \zoː\. sud is at rank #439, tagged as anoun, pronounced \syd\.
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 4626, this pair ranks #431,119 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of so vs sud
Shared letters: s. Private to "so": o. Private to "sud": du.
"so" · 2 letters · shape CV · "sud" · 3 letters · shape CVC
Frequently Asked Questions
Do "so" and "sud" mean the same thing in a sentence?
Which is more common, "so" or "sud"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "so" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sud" - compare definitions side by side with the headword page. Word entry
- This pair ranks #431,119 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "so" and "sud" also get mixed up with nearby pairs, the highest-scored neighbour is "so vs suu". Nearby pair
Confusion rank #431,119 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.