Which to use
“then” is an adverb and “this” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #25,065
- “then” frequency rank
- #4,753
- “this” frequency rank
- 29818
- confusion score
Side-by-Side Comparison
| Feature | then | this |
|---|---|---|
| Definition | Entonces. | Este, esta. |
Where the eye mixes then and this
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between then and this
These two trip readers on the page rather than in the ear: then is /ðɛn/ while this is /ðɪs/. 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 (adverb vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 29818, derived from the frequency rank of both members and their visual similarity.
then is recorded at frequency rank #25,065, classified as anadv, pronounced /ðɛn/. this is at rank #4,753, tagged as apron, pronounced /ðɪs/.
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 29818, this pair ranks #215,114 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of then vs this
Shared letters: ht. Private to "then": en. Private to "this": is.
"then" · 4 letters · shape CCVC · "this" · 4 letters · shape CCVC
Known mistypes of this pair
Frequently Asked Questions
Can "then" and "this" be used interchangeably?
Which is more common, "then" or "this"?
Useful next steps
Eye-level mix-up between "then" and "this" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "then" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "this" - compare definitions side by side with the headword page. Word entry
- This pair ranks #215,114 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "then" and "this" also get mixed up with nearby pairs, the highest-scored neighbour is "tem vs then". 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 #215,114 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.