grillonvsGuillouWhich spelling fits?

Quick tell: grillon is a noun, Guillou is a name, so they fill different roles in a sentence.

Which to use

“grillon” is a noun and “Guillou” is a name - they look or sound alike but fill different roles in a sentence.

#47,362
“grillon” frequency rank
#48,565
“Guillou” frequency rank
95927
confusion score

Side-by-Side Comparison

Feature grillon Guillou
Definition Genre d’insectes orthoptères dont les mâles produisent un bruit aigu et perçant par le frottement de leurs élytres. Nom de famille.

Letter map: grillon vs Guillou

Shared letters muted; letters that set grillon and Guillou apart highlighted. Shared run: 5. grillon (CCVCCVC) and Guillou (CVVCCVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

7 ch
grillon
7 ch
Guillou

Part-of-speech tell for grillon / Guillou

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: grillon is anoun and Guillouaname. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 95927, derived from the frequency rank of both members and their visual similarity.

grillon is recorded at frequency rank #47,362, classified as anoun, pronounced \ɡʁi.jɔ̃\. Guillou is at rank #48,565, tagged as aname.

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 95927, this pair ranks #865 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of grillon vs Guillou

Shared letters: gilo. Private to "grillon": nr. Private to "Guillou": u.

"grillon" · 7 letters · shape CCVCCVC  ·  "Guillou" · 7 letters · shape CVVCCVV

Known mistypes of this pair

  • grillon ← ggrillon · girllon · grillno · grillonn · griloln · grilon · grlilon · grrillon
  • Guillou ← gguillou · giullou · guilluo · guilolu · guilou · gulilou · ugillou

Frequently Asked Questions

Is swapping "grillon" for "Guillou" ever safe?
No - they are not even the same part of speech. "grillon" is a noun and "Guillou" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "grillon" or "Guillou"?
"grillon" is the more common of the two: it sits at frequency rank #47,362 in our French list, against #48,565 for "Guillou". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "grillon" and "Guillou".

  • Full dictionary entry for "grillon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Guillou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #865 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "grillon" and "Guillou" also get mixed up with nearby pairs, the highest-scored neighbour is "grillon vs grillons". 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 #865 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