insuvsissueWhat's the difference?

Which to use

“insu” and “issue” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#12,987
“insu” frequency rank
#1,921
“issue” frequency rank
14908
confusion score

Side-by-Side Comparison

Feature insu issue
Definition Utilisé uniquement dans la locution figée à l’insu de quelqu'un, et, dans les locutions analogues, à mon insu, à votre insu… C’est-à-dire la chose n'étant pas sue de quelqu'un, de moi, de vous, etc. Sortie, lieu par où l’on sort.

Where the eye mixes insu and issue

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
insu
5 ch
issue

Visual trap between insu and issue

A purely visual mix-up. insu (\ɛ̃.sy\) and issue (\i.sy\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 14908, derived from the frequency rank of both members and their visual similarity.

insu is recorded at frequency rank #12,987, classified as anoun, pronounced \ɛ̃.sy\. issue is at rank #1,921, tagged as anoun, pronounced \i.sy\.

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 14908, this pair ranks #394,676 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of insu vs issue

Shared letters: isu. Private to "insu": n. Private to "issue": e.

"insu" · 4 letters · shape VCCV  ·  "issue" · 5 letters · shape VCCVV

Known mistypes of this pair

  • insuinnsu · inssu · inus · isnu · nisu
  • issueisseu · isue · isuse · sisue

Frequently Asked Questions

Is swapping "insu" for "issue" ever safe?
No. They are said differently (\ɛ̃.sy\ versus \i.sy\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "insu" or "issue"?
"issue" is the more common of the two: it sits at frequency rank #1,921 in our French list, against #12,987 for "insu". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "insu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "issue" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #394,676 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "insu" and "issue" also get mixed up with nearby pairs, the highest-scored neighbour is "instru vs insu". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #394,676 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