Thaisvsthat'sWhich spelling fits?

Quick tell: Thais is a noun, that's is a contraction, so they fill different roles in a sentence.

Which to use

“Thais” is a noun and “that's” is a contraction - they look or sound alike but fill different roles in a sentence.

#42,943
“Thais” frequency rank
#143
“that's” frequency rank
43086
confusion score

Side-by-Side Comparison

Feature Thais that's
Definition plural of Thai That is.

Letter map: Thais vs that's

Shared letters muted; letters that set Thais and that's apart highlighted. Shared run: 4. Thais (CCVVC) and that's (CCVCC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
Thais
6 ch
that's

Grammar separator: Thais vs that's

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Thais is anoun and that'sacontraction. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 43086, derived from the frequency rank of both members and their visual similarity.

Thais is recorded at frequency rank #42,943, classified as anoun. that's is at rank #143, tagged as acontraction, pronounced /ðəts/.

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 43086, this pair ranks #243,350 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Thais vs that's

Shared letters: ahst. Private to "Thais": i. Private to "that's": -.

"Thais" · 5 letters · shape CCVVC  ·  "that's" · 5 letters · shape CCVCC

Known mistypes of this pair

  • Thais ← htais · tahis · thaiss · thasi · thhais · thias · tthais

Frequently Asked Questions

Can "Thais" and "that's" be used interchangeably?
No - they are not even the same part of speech. "Thais" is a noun and "that's" a contraction, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Thais" vs "that's" - which ranks higher?
"that's" is the more common of the two: it sits at frequency rank #143 in our English list, against #42,943 for "Thais". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Done with this confusable. These links stay specific to "Thais" and "that's".

  • Full dictionary entry for "Thais" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "that's" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #243,350 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Thais" and "that's" also get mixed up with nearby pairs, the highest-scored neighbour is "Thais vs theism". 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 #243,350 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