Which to use
“dass” is a verb and “dat” is a determiner - they look or sound alike but fill different roles in a sentence.
- #42,593
- “dass” frequency rank
- #13,898
- “dat” frequency rank
- 56491
- confusion score
Side-by-Side Comparison
| Feature | dass | dat |
|---|---|---|
| Definition | To dare. | Pronunciation spelling of that. |
Where the eye mixes dass and dat
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Visual trap between dass and dat
These two trip readers on the page rather than in the ear: dass is /dæs/ while dat is /dæt/. 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 (verb vs determiner), which is usually the fastest check. Our composite confusion score for this pair is 56491, derived from the frequency rank of both members and their visual similarity.
dass is recorded at frequency rank #42,593, classified as averb, pronounced /dæs/. dat is at rank #13,898, tagged as adet, pronounced /dæt/.
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 56491, this pair ranks #125,919 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of dass vs dat
Shared letters: ad. Private to "dass": s. Private to "dat": t.
"dass" · 4 letters · shape CVCC · "dat" · 3 letters · shape CVC
Known mistypes of this pair
- dass ← adss · ddass · dsas
Frequently Asked Questions
Do "dass" and "dat" mean the same thing in a sentence?
Which is more common, "dass" or "dat"?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "dass" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "dat" - compare definitions side by side with the headword page. Word entry
- This pair ranks #125,919 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "dass" and "dat" also get mixed up with nearby pairs, the highest-scored neighbour is "dass vs DSI". 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 #125,919 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.