ThivstooWhich spelling fits?

Quick tell: Thi is a name, too is an adverb, so they fill different roles in a sentence.

Which to use

“Thi” is a name and “too” is an adverb - they look or sound alike but fill different roles in a sentence.

#23,700
“Thi” frequency rank
#121
“too” frequency rank
23821
confusion score

Side-by-Side Comparison

Feature Thi too
Definition A surname from Vietnamese. Likewise.

Letter map: Thi vs too

Shared letters muted; letters that set Thi and too apart highlighted. Shared run: 1.

3 ch
Thi
3 ch
too

Part-of-speech tell for Thi / too

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Thi is aname and tooanadverb. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 23821, derived from the frequency rank of both members and their visual similarity.

Thi is recorded at frequency rank #23,700, classified as aname. too is at rank #121, tagged as anadv, pronounced /tuː/.

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 23821, this pair ranks #406,528 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of Thi vs too

Shared letters: t. Private to "Thi": hi. Private to "too": o.

"Thi" · 3 letters · shape CCV  ·  "too" · 3 letters · shape CVV

Frequently Asked Questions

Is swapping "Thi" for "too" ever safe?
No - they are not even the same part of speech. "Thi" is a name and "too" an adverb, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Thi" vs "too" - which ranks higher?
"too" is the more common of the two: it sits at frequency rank #121 in our English list, against #23,700 for "Thi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Done with this confusable. These links stay specific to "Thi" and "too".

  • Full dictionary entry for "Thi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "too" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #406,528 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "Thi" and "too" also get mixed up with nearby pairs, the highest-scored neighbour is "Taf vs Thi". Nearby pair

Confusion rank #406,528 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