too vs Tu, What's the Difference?

Which to use

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

#121
“too” frequency rank: #10,301
“Tu” frequency rank: 10422
confusion score

Side-by-Side Comparison

Feature	too	Tu
Definition	Likewise.	A surname from Chinese.

Letter map: too vs Tu

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

3 ch

too

2 ch

Part-of-speech tell for too / Tu

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: too is anadverb and Tuaname. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 10422, derived from the frequency rank of both members and their visual similarity.

too is recorded at frequency rank #121, classified as anadv, pronounced /tuː/. Tu is at rank #10,301, 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 10422, this pair ranks #492,421 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of too vs Tu

Shared letters: t. Private to "too": o. Private to "Tu": u.

"too" · 3 letters · shape CVV · "Tu" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "too" for "Tu" ever safe?

No - they are not even the same part of speech. "too" is an adverb and "Tu" a name, so a sentence built for one is usually ungrammatical with the other.

Frequency check: "too" vs "Tu" - which ranks higher?

"too" is the more common of the two: it sits at frequency rank #121 in our English list, against #10,301 for "Tu". 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 "too" and "Tu".

Full dictionary entry for "too" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "Tu" - compare definitions side by side with the headword page. Word entry
This pair ranks #492,421 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
"too" and "Tu" also get mixed up with nearby pairs, the highest-scored neighbour is "Tu vs tuft". Nearby pair

Confusion rank #492,421 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.