thatvsThunWhat's the difference?

Quick tell: that is a conjunction, Thun is a name, so they fill different roles in a sentence.

Which to use

“that” is a conjunction and “Thun” is a name - they look or sound alike but fill different roles in a sentence.

#10
“that” frequency rank
#47,962
“Thun” frequency rank
47972
confusion score

Side-by-Side Comparison

Feature that Thun
Definition Introducing a clause that is the object of a verb, especially a reporting verb or verb expressing belief, knowledge, perception, etc. A city and municipality of Bern canton, Switzerland.

Letter map: that vs Thun

Shared letters muted; letters that set that and Thun apart highlighted. Shared run: 2. that and Thun follow the identical consonant-vowel pattern (CCVC). Same shape at a glance is often the real trap, independent of shared letters.

4 ch
that
4 ch
Thun

Part-of-speech tell for that / Thun

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: that is aconjunction and Thunaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 47972, derived from the frequency rank of both members and their visual similarity.

that is recorded at frequency rank #10, classified as aconj, pronounced /ðət/. Thun is at rank #47,962, 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 47972, this pair ranks #197,500 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of that vs Thun

Shared letters: ht. Private to "that": a. Private to "Thun": nu.

"that" · 4 letters · shape CCVC  ·  "Thun" · 4 letters · shape CCVC

Known mistypes of this pair

  • that ← htat · taht · thatt · thhat · thta · tthat
  • Thun ← htun · thhun · thnu · thunn · tthun · tuhn

Frequently Asked Questions

Do "that" and "Thun" mean the same thing in a sentence?
No - they are not even the same part of speech. "that" is a conjunction and "Thun" a name, so a sentence built for one is usually ungrammatical with the other.
In ordinary English text, does "that" or "Thun" show up more?
"that" is the more common of the two: it sits at frequency rank #10 in our English list, against #47,962 for "Thun". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Pair "that" vs "Thun" is on the table, pick a follow-up below.

  • Full dictionary entry for "that" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Thun" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #197,500 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "that" and "Thun" also get mixed up with nearby pairs, the highest-scored neighbour is "Thun vs thunk". 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 #197,500 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list