Which to use
“then” is an adverb and “thin” is an adjective - they look or sound alike but fill different roles in a sentence.
- #18,204
- “then” frequency rank
- #34,948
- “thin” frequency rank
- 53152
- confusion score
Side-by-Side Comparison
| Feature | then | thin |
|---|---|---|
| Definition | então, aí. daí | delgado |
Where the eye mixes then and thin
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: then vs thin
These two trip readers on the page rather than in the ear: then is /ˈðɛn/ while thin is /'θɪn/. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - e in “then” becomes i in “thin”, and the parts of speech differ too (adverb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 53152, derived from the frequency rank of both members and their visual similarity.
then is recorded at frequency rank #18,204, classified as anadv, pronounced /ˈðɛn/. thin is at rank #34,948, tagged as anadj, pronounced /'θɪn/.
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 53152, this pair ranks #12,241 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of then vs thin
Shared letters: hnt. Private to "then": e. Private to "thin": i.
"then" · 4 letters · shape CCVC · "thin" · 4 letters · shape CCVC
Known mistypes of this pair
Frequently Asked Questions
Is swapping "then" for "thin" ever safe?
In ordinary Portuguese text, does "then" or "thin" show up more?
Useful next steps
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "then" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "thin" - compare definitions side by side with the headword page. Word entry
- This pair ranks #12,241 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "then" and "thin" also get mixed up with nearby pairs, the highest-scored neighbour is "thin vs til". 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 #12,241 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.