sen vs só, What's the Difference?

Which to use

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

#13,176
“sen” frequency rank: #50
“só” frequency rank: 13226
confusion score

Side-by-Side Comparison

Feature	sen	só
Definition	sonho	solitário, sem companhia, sem círculo social

Where the eye mixes sen and só

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

3 ch

sen

2 ch

só

Visual trap between sen and só

These two trip readers on the page rather than in the ear: sen is /ˈsɛn/ 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 13226, derived from the frequency rank of both members and their visual similarity.

sen is recorded at frequency rank #13,176, classified as anoun, pronounced /ˈsɛn/. 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 13226, this pair ranks #59,196 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sen vs só

Shared letters: s. Private to "sen": en. Private to "só": ó.

"sen" · 3 letters · shape CVC · "só" · 2 letters · shape CV

Frequently Asked Questions

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

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

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

"só" is the more common of the two: it sits at frequency rank #50 in our Portuguese list, against #13,176 for "sen". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

Full dictionary entry for "sen" 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 #59,196 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"sen" and "só" also get mixed up with nearby pairs, the highest-scored neighbour is "sen vs sueño". Nearby pair

Confusion rank #59,196 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.