Sau vs som, What's the Difference?

Which to use

“Sau” and “som” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#49,171
“Sau” frequency rank: #1,134
“som” frequency rank: 50305
confusion score

Side-by-Side Comparison

Feature	Sau	som
Definition	porco	onda longitudinal transmitida pela matéria e que podemos ouvir (geralmente entre 20Hz e 20kHz):

Where the eye mixes Sau and som

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. Sau (CVV) and som (CVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

3 ch

som

Why the eye confuses Sau with som

A purely visual mix-up. Sau (/zaʊ̯/) and som (/ˈsõ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50305, 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/. som is at rank #1,134, tagged as anoun, pronounced /ˈsõ/.

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 50305, this pair ranks #14,666 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of Sau vs som

Shared letters: s. Private to "Sau": au. Private to "som": mo.

"Sau" · 3 letters · shape CVV · "som" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "Sau" for "som" ever safe?

No. They are said differently (/zaʊ̯/ versus /ˈsõ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.

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

"som" is the more common of the two: it sits at frequency rank #1,134 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.

Useful next steps

Eye-level mix-up between "Sau" and "som" 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 "som" - compare definitions side by side with the headword page. Word entry
This pair ranks #14,666 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"Sau" and "som" also get mixed up with nearby pairs, the highest-scored neighbour is "Sau vs soap". Nearby pair

Confusion rank #14,666 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.