TsuivstumWhich spelling fits?

Quick tell: Tsui is a name, tum is a noun, so they fill different roles in a sentence.

Which to use

“Tsui” is a name and “tum” is a noun - they look or sound alike but fill different roles in a sentence.

#46,827
“Tsui” frequency rank
#26,641
“tum” frequency rank
73468
confusion score

Side-by-Side Comparison

Feature Tsui tum
Definition A surname. shortened form of tummy

Letter map: Tsui vs tum

Shared letters muted; letters that set Tsui and tum apart highlighted. Shared run: 2.

4 ch
Tsui
3 ch
tum

Part-of-speech tell for Tsui / tum

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Tsui is aname and tumanoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 73468, derived from the frequency rank of both members and their visual similarity.

Tsui is recorded at frequency rank #46,827, classified as aname. tum is at rank #26,641, tagged as anoun, pronounced /tʌm/.

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 73468, this pair ranks #39,512 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of Tsui vs tum

Shared letters: tu. Private to "Tsui": is. Private to "tum": m.

"Tsui" · 4 letters · shape CCVV  ·  "tum" · 3 letters · shape CVC

Known mistypes of this pair

  • Tsuistui · tsiu · tssui · ttsui · tusi

Frequently Asked Questions

Do "Tsui" and "tum" mean the same thing in a sentence?
No - they are not even the same part of speech. "Tsui" is a name and "tum" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Tsui" or "tum"?
"tum" is the more common of the two: it sits at frequency rank #26,641 in our English list, against #46,827 for "Tsui". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "Tsui" and "tum".

  • Full dictionary entry for "Tsui" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "tum" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #39,512 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Tsui" and "tum" also get mixed up with nearby pairs, the highest-scored neighbour is "TDI vs Tsui". 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 #39,512 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