Which to use
“seal” is a noun and “sein” is a verb - they look or sound alike but fill different roles in a sentence.
- #37,852
- “seal” frequency rank
- #45,601
- “sein” frequency rank
- 83453
- confusion score
Side-by-Side Comparison
| Feature | seal | sein |
|---|---|---|
| Definition | Sello. | Ser, estar. |
Where the eye mixes seal and sein
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence. seal and sein follow the identical consonant-vowel pattern (CVVC). Same shape at a glance is often the real trap, independent of shared letters.
Visual trap between seal and sein
These two trip readers on the page rather than in the ear: seal is /siːl/ while sein is [ˈzaɪ̯n]. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 83453, derived from the frequency rank of both members and their visual similarity.
seal is recorded at frequency rank #37,852, classified as anoun, pronounced /siːl/. sein is at rank #45,601, tagged as averb, pronounced [ˈzaɪ̯n].
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 83453, this pair ranks #8,128 of 323,831 scored Spanish confusable pairs - among the most confusable pairs.
Orthographic DNA of seal vs sein
Shared letters: es. Private to "seal": al. Private to "sein": in.
"seal" · 4 letters · shape CVVC · "sein" · 4 letters · shape CVVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "seal" for "sein" ever safe?
In ordinary Spanish text, does "seal" or "sein" show up more?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "seal" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sein" - compare definitions side by side with the headword page. Word entry
- This pair ranks #8,128 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "seal" and "sein" also get mixed up with nearby pairs, the highest-scored neighbour is "sei vs sein". 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 #8,128 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.