Which to use
“that” is a conjunction and “Thi” is a name - they look or sound alike but fill different roles in a sentence.
- #10
- “that” frequency rank
- #23,700
- “Thi” frequency rank
- 23710
- confusion score
Side-by-Side Comparison
| Feature | that | Thi |
|---|---|---|
| Definition | Introducing a clause that is the object of a verb, especially a reporting verb or verb expressing belief, knowledge, perception, etc. | A surname from Vietnamese. |
Letter map: that vs Thi
Shared letters muted; letters that set that and Thi apart highlighted. Shared run: 2.
Role in the sentence - that and Thi
Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: that is aconjunction and Thianame. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 23710, derived from the frequency rank of both members and their visual similarity.
that is recorded at frequency rank #10, classified as aconj, pronounced /ðət/. Thi is at rank #23,700, tagged as aname.
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 23710, this pair ranks #407,314 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of that vs Thi
Shared letters: ht. Private to "that": a. Private to "Thi": i.
"that" · 4 letters · shape CCVC · "Thi" · 3 letters · shape CCV
Known mistypes of this pair
- that ← htat · taht · thatt · thhat · thta · tthat
Frequently Asked Questions
Is swapping "that" for "Thi" ever safe?
In ordinary English text, does "that" or "Thi" show up more?
What to do next
You've compared "that" and "Thi". Here's where to go from here.
- Full dictionary entry for "that" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "Thi" - compare definitions side by side with the headword page. Word entry
- This pair ranks #407,314 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "that" and "Thi" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs Thi". 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 #407,314 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.