Which to use
“sem” is a preposition and “seno” is a noun - they look or sound alike but fill different roles in a sentence.
- #69
- “sem” frequency rank
- #48,110
- “seno” frequency rank
- 48179
- confusion score
Side-by-Side Comparison
| Feature | sem | seno |
|---|---|---|
| Definition | indicativa de carência ou ausência | em relação a um dos ângulos agudos de um triângulo retângulo, é o resultado da divisão do valor do cateto oposto a este ângulo pelo valor da hipotenusa |
Where the eye mixes sem and seno
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Look-alike desk: sem vs seno
These two trip readers on the page rather than in the ear: sem is /sɐ̃j̃/ while seno is /ˈsenu/. 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 (preposition vs noun), which is usually the fastest check. Our composite confusion score for this pair is 48179, derived from the frequency rank of both members and their visual similarity.
sem is recorded at frequency rank #69, classified as aprep, pronounced /sɐ̃j̃/. seno is at rank #48,110, tagged as anoun, pronounced /ˈsenu/.
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 48179, this pair ranks #17,014 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of sem vs seno
Shared letters: es. Private to "sem": m. Private to "seno": no.
"sem" · 3 letters · shape CVC · "seno" · 4 letters · shape CVCV
Known mistypes of this pair
- seno ← esno · senno · seon · sneo · sseno
Frequently Asked Questions
Do "sem" and "seno" mean the same thing in a sentence?
In ordinary Portuguese text, does "sem" or "seno" show up more?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "sem" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "seno" - compare definitions side by side with the headword page. Word entry
- This pair ranks #17,014 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "sem" and "seno" also get mixed up with nearby pairs, the highest-scored neighbour is "seno vs sueño". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #17,014 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.