thovsTsuWhat's the difference?

Quick tell: tho is a article, Tsu is a name, so they fill different roles in a sentence.

Which to use

“tho” is an article and “Tsu” is a name - they look or sound alike but fill different roles in a sentence.

#3,588
“tho” frequency rank
#43,976
“Tsu” frequency rank
47564
confusion score

Side-by-Side Comparison

Feature tho Tsu
Definition The (plural form); those. The capital city of Mie Prefecture, Japan.

Letter map: tho vs Tsu

Shared letters muted; letters that set tho and Tsu apart highlighted. Shared run: 1.

3 ch
tho
3 ch
Tsu

Role in the sentence - tho and Tsu

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: tho is anarticle and Tsuaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 47564, derived from the frequency rank of both members and their visual similarity.

tho is recorded at frequency rank #3,588, classified as anarticle, pronounced /ðəʊ/. Tsu is at rank #43,976, 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 47564, this pair ranks #201,286 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of tho vs Tsu

Shared letters: t. Private to "tho": ho. Private to "Tsu": su.

"tho" · 3 letters · shape CCV  ·  "Tsu" · 3 letters · shape CCV

Frequently Asked Questions

Is swapping "tho" for "Tsu" ever safe?
No - they are not even the same part of speech. "tho" is an article and "Tsu" a name, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "tho" vs "Tsu" - which ranks higher?
"tho" is the more common of the two: it sits at frequency rank #3,588 in our English list, against #43,976 for "Tsu". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "tho" and "Tsu". Here's where to go from here.

  • Full dictionary entry for "tho" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Tsu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #201,286 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "tho" and "Tsu" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs Tsu". Nearby pair

Confusion rank #201,286 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