Sau vs só, What's the Difference?

Which to use

“Sau” is a noun and “só” is an adjective - they look or sound alike but fill different roles in a sentence.

#49,171
“Sau” frequency rank: #50
“só” frequency rank: 49221
confusion score

Side-by-Side Comparison

Feature	Sau	só
Definition	porco	solitário, sem companhia, sem círculo social

Where the eye mixes Sau and só

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch

2 ch

só

Visual trap between Sau and só

These two trip readers on the page rather than in the ear: Sau is /zaʊ̯/ while só is /ˈsɔ/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 49221, derived from the frequency rank of both members and their visual similarity.

Sau is recorded at frequency rank #49,171, classified as anoun, pronounced /zaʊ̯/. só is at rank #50, tagged as anadj, pronounced /ˈsɔ/.

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 49221, this pair ranks #15,840 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of Sau vs só

Shared letters: s. Private to "Sau": au. Private to "só": ó.

"Sau" · 3 letters · shape CVV · "só" · 2 letters · shape CV

Frequently Asked Questions

Can "Sau" and "só" be used interchangeably?

No - they are not even the same part of speech. "Sau" is a noun and "só" an adjective, so a sentence built for one is usually ungrammatical with the other.

In ordinary Portuguese text, does "Sau" or "só" show up more?

"só" is the more common of the two: it sits at frequency rank #50 in our Portuguese list, against #49,171 for "Sau". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

Full dictionary entry for "Sau" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "só" - compare definitions side by side with the headword page. Word entry
This pair ranks #15,840 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"Sau" and "só" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs soap". Nearby pair

Confusion rank #15,840 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.