IQvsiraWhat's the difference?

Quick tell: IQ is a noun, ira is a verb, so they fill different roles in a sentence.

Which to use

“IQ” is a noun and “ira” is a verb - they look or sound alike but fill different roles in a sentence.

#47,975
“IQ” frequency rank
#2,932
“ira” frequency rank
50907
confusion score

Side-by-Side Comparison

Feature IQ ira
Definition QI, quotient intellectuel. Troisième personne du singulier de l’indicatif futur simple de aller.

Where the eye mixes IQ and ira

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

2 ch
IQ
3 ch
ira

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: IQ is \iːˈkuː\ while ira is \i.ʁa\. 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 (noun vs verb), which is usually the fastest check. Our composite confusion score for this pair is 50907, derived from the frequency rank of both members and their visual similarity.

IQ is recorded at frequency rank #47,975, classified as anoun, pronounced \iːˈkuː\. ira is at rank #2,932, tagged as averb, pronounced \i.ʁa\.

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 50907, this pair ranks #159,025 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of IQ vs ira

Shared letters: i. Private to "IQ": q. Private to "ira": ar.

"IQ" · 2 letters · shape VC  ·  "ira" · 3 letters · shape VCV

Frequently Asked Questions

Can "IQ" and "ira" be used interchangeably?
No - they are not even the same part of speech. "IQ" is a noun and "ira" a verb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "IQ" or "ira"?
"ira" is the more common of the two: it sits at frequency rank #2,932 in our French list, against #47,975 for "IQ". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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

Source: FrequencyWords open word-frequency list