Which to use
“sou” is a noun and “Sousa” is a name - they look or sound alike but fill different roles in a sentence.
- #35,525
- “sou” frequency rank
- #38,627
- “Sousa” frequency rank
- 74152
- confusion score
Side-by-Side Comparison
| Feature | sou | Sousa |
|---|---|---|
| Definition | An old French copper coin equal to one twentieth of a livre or twelve deniers; one sou is to the livre as one shilling is to the pound. | A surname from Portuguese. |
Where the spellings diverge
Shared letters are muted; the letters that actually set sou and Sousa apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sou is anoun and Sousaaname. On the page they differ by 2 extra letter(s) - “sou” sits inside “Sousa”. Our composite confusion score for this pair is 74152, derived from the frequency rank of both members and their visual similarity.
sou is recorded at frequency rank #35,525, classified as anoun, pronounced /suː/. Sousa is at rank #38,627, tagged as aname.
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 74152, this pair ranks #37,246 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of sou vs Sousa
Shared letters: osu. Private to "sou": -. Private to "Sousa": a.
"sou" · 3 letters · shape CVV · "Sousa" · 5 letters · shape CVVCV
Known mistypes of this pair
- Sousa ← osusa · sosua · souas · soussa · ssousa · suosa
Frequency comparison
Frequently Asked Questions
Can "sou" and "Sousa" be used interchangeably?
Which is more common, "sou" or "Sousa"?
Remembering sou vs Sousa
The fastest way to pick the right one every time.
- Check the role first: if you need a noun, it's “sou”; for a name, it's “Sousa”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “sou” entry
- Browse more pairs most likely to be confused. Most confusable