Which to use
“ii” is an adverb and “IQ” is a noun - they look or sound alike but fill different roles in a sentence.
- #627
- “ii” frequency rank
- #47,975
- “IQ” frequency rank
- 48602
- confusion score
Side-by-Side Comparison
| Feature | ii | IQ |
|---|---|---|
| Definition | Oui. | QI, quotient intellectuel. |
Where the eye mixes ii and IQ
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses ii with IQ
These two trip readers on the page rather than in the ear: ii is \iː\ while IQ is \iːˈkuː\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - i in “ii” becomes q in “IQ”, and the parts of speech differ too (adverb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 48602, derived from the frequency rank of both members and their visual similarity.
ii is recorded at frequency rank #627, classified as anadv, pronounced \iː\. IQ is at rank #47,975, tagged as anoun, pronounced \iːˈkuː\.
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 48602, this pair ranks #177,584 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ii vs IQ
Shared letters: i. Private to "ii": -. Private to "IQ": q.
"ii" · 2 letters · shape VV · "IQ" · 2 letters · shape VC
Frequently Asked Questions
Can "ii" and "IQ" be used interchangeably?
In ordinary French text, does "ii" or "IQ" show up more?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ii" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "IQ" - compare definitions side by side with the headword page. Word entry
- This pair ranks #177,584 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ii" and "IQ" also get mixed up with nearby pairs, the highest-scored neighbour is "IQ vs isi". Nearby pair
Confusion rank #177,584 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.