punaisevspunisWhich spelling fits?

Quick tell: punaise is a noun, punis is an adjective, so they fill different roles in a sentence.

Which to use

“punaise” is a noun and “punis” is an adjective - they look or sound alike but fill different roles in a sentence.

#18,843
“punaise” frequency rank
#14,338
“punis” frequency rank
33181
confusion score

Side-by-Side Comparison

Feature punaise punis
Definition Nom désignant de nombreuses sortes d’insectes, souvent de forme plate, qui émettent une odeur désagréable lorsqu’ils sont effrayés ou tués. Masculin pluriel de puni.

Where the eye mixes punaise and punis

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence. punaise runs 7 letters (CVCVVCV) against punis's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

7 ch
punaise
5 ch
punis

Why the eye confuses punaise with punis

These two trip readers on the page rather than in the ear: punaise is \py.nɛz\ while punis is \py.ni\. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 33181, derived from the frequency rank of both members and their visual similarity.

punaise is recorded at frequency rank #18,843, classified as anoun, pronounced \py.nɛz\. punis is at rank #14,338, tagged as anadj, pronounced \py.ni\.

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 33181, this pair ranks #292,336 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of punaise vs punis

Shared letters: inpsu. Private to "punaise": ae. Private to "punis": -.

"punaise" · 7 letters · shape CVCVVCV  ·  "punis" · 5 letters · shape CVCVC

Known mistypes of this pair

  • punaise ← pnuaise · ppunaise · puanise · punaies · punaisse · punasie · puniase · punnaise
  • punis ← pnuis · ppunis · puins · puniss · punnis · punsi · upnis

Frequently Asked Questions

Do "punaise" and "punis" mean the same thing in a sentence?
No - they are not even the same part of speech. "punaise" is a noun and "punis" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "punaise" or "punis" show up more?
"punis" is the more common of the two: it sits at frequency rank #14,338 in our French list, against #18,843 for "punaise". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "punaise" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "punis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #292,336 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "punaise" and "punis" also get mixed up with nearby pairs, the highest-scored neighbour is "punis vs purin". 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 #292,336 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