ittvsiuTell them apart

Quick tell: itt is a adverb, iu is a pronoun, so they fill different roles in a sentence.

Which to use

“itt” is an adverb and “iu” is a pronoun - they look or sound alike but fill different roles in a sentence.

#34,586
“itt” frequency rank
#46,833
“iu” frequency rank
81419
confusion score

Side-by-Side Comparison

Feature itt iu
Definition Ici. Je.

Where the eye mixes itt and iu

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
itt
2 ch
iu

Look-alike desk: itt vs iu

These two trip readers on the page rather than in the ear: itt is \itt\ while iu is \ˈiu\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adverb vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 81419, derived from the frequency rank of both members and their visual similarity.

itt is recorded at frequency rank #34,586, classified as anadv, pronounced \itt\. iu is at rank #46,833, tagged as apron, pronounced \ˈiu\.

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 81419, this pair ranks #18,789 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of itt vs iu

Shared letters: i. Private to "itt": t. Private to "iu": u.

"itt" · 3 letters · shape VCC  ·  "iu" · 2 letters · shape VV

Frequently Asked Questions

Is swapping "itt" for "iu" ever safe?
No - they are not even the same part of speech. "itt" is an adverb and "iu" a pronoun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "itt" or "iu"?
"itt" is the more common of the two: it sits at frequency rank #34,586 in our French list, against #46,833 for "iu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "itt" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "iu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #18,789 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "itt" and "iu" also get mixed up with nearby pairs, the highest-scored neighbour is "isi vs iu". Nearby pair

Confusion rank #18,789 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list