Which to use
“sei” is an intj and “spin” is a noun - they look or sound alike but fill different roles in a sentence.
- #118
- “sei” frequency rank
- #19,560
- “spin” frequency rank
- 19678
- confusion score
Side-by-Side Comparison
| Feature | sei | spin |
|---|---|---|
| Definition | expressa que aquilo ouvido que foi dito ou afirmado por alguém não é tomado como sendo a verdade | aranha |
Letter map: sei vs spin
Shared letters muted; letters that set sei and spin apart highlighted. Shared run: 2.
Part-of-speech tell for sei / spin
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: sei is anintj and spinanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 19678, derived from the frequency rank of both members and their visual similarity.
sei is recorded at frequency rank #118, classified as anintj. spin is at rank #19,560, tagged as anoun, pronounced /spɪn/ ouvir^(fonte ?).
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 19678, this pair ranks #51,013 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of sei vs spin
Shared letters: is. Private to "sei": e. Private to "spin": np.
"sei" · 3 letters · shape CVV · "spin" · 4 letters · shape CCVC
Known mistypes of this pair
- spin ← psin · sipn · spinn · spni · sppin · sspin
Frequently Asked Questions
Do "sei" and "spin" mean the same thing in a sentence?
In ordinary Portuguese text, does "sei" or "spin" show up more?
What to do next
Pair "sei" vs "spin" is on the table, pick a follow-up below.
- Full dictionary entry for "sei" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "spin" - compare definitions side by side with the headword page. Word entry
- This pair ranks #51,013 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "sei" and "spin" also get mixed up with nearby pairs, the highest-scored neighbour is "slip vs spin". 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 #51,013 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.