Which to use
“senão” is a conjunction and “sésamo” is a noun - they look or sound alike but fill different roles in a sentence.
- #3,044
- “senão” frequency rank
- #40,349
- “sésamo” frequency rank
- 43393
- confusion score
Side-by-Side Comparison
| Feature | senão | sésamo |
|---|---|---|
| Definition | em caso contrário | sésamo |
Where the eye mixes senão and sésamo
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. senão runs 5 letters (CVCVV) against sésamo's 6 (CVCVCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses senão with sésamo
These two trip readers on the page rather than in the ear: senão is /sɨ.ˈnɐ̃w̃/ while sésamo is /ˈsɛsa̝mo̝/. 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 (conjunction vs noun), which is usually the fastest check. Our composite confusion score for this pair is 43393, derived from the frequency rank of both members and their visual similarity.
senão is recorded at frequency rank #3,044, classified as aconj, pronounced /sɨ.ˈnɐ̃w̃/. sésamo is at rank #40,349, tagged as anoun, pronounced /ˈsɛsa̝mo̝/.
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 43393, this pair ranks #22,247 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of senão vs sésamo
Shared letters: os. Private to "senão": enã. Private to "sésamo": amé.
"senão" · 5 letters · shape CVCVV · "sésamo" · 6 letters · shape CVCVCV
Frequently Asked Questions
Can "senão" and "sésamo" be used interchangeably?
Which is more common, "senão" or "sésamo"?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "senão" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sésamo" - compare definitions side by side with the headword page. Word entry
- This pair ranks #22,247 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "senão" and "sésamo" also get mixed up with nearby pairs, the highest-scored neighbour is "sésamo vs sismo". Nearby pair
Confusion rank #22,247 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.