CorfouvscoucouWhich spelling fits?

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

Which to use

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

#43,362
“Corfou” frequency rank
#5,440
“coucou” frequency rank
48802
confusion score

Side-by-Side Comparison

Feature Corfou coucou
Definition Île de la mer Ionienne, en Grèce. Nom normalisé de 11 genres assez hétérogènes comprenant 56 espèces d'oiseaux de la famille des cuculidés habitant l'Ancien Monde, essentiellement caractérisées par leur parasitisme de couvée, habitude par laquelle elles confient la couvaison et l'élevage des oisillons à d'autres espèces d'oiseaux le plus souvent plus petites qu'elles; l'espèce-type de ce groupe d'oiseaux est le coucou gris (Cuculus canorus) dont le cri a donné son nom au genre.

Where the eye mixes Corfou and coucou

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. Corfou (CVCCVV) and coucou (CVVCVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
Corfou
6 ch
coucou

Why the eye confuses Corfou with coucou

These two trip readers on the page rather than in the ear: Corfou is \kɔʁ.fu\ while coucou is \ku.ku\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (name vs noun), which is usually the fastest check. Our composite confusion score for this pair is 48802, derived from the frequency rank of both members and their visual similarity.

Corfou is recorded at frequency rank #43,362, classified as aname, pronounced \kɔʁ.fu\. coucou is at rank #5,440, tagged as anoun, pronounced \ku.ku\.

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 48802, this pair ranks #175,926 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of Corfou vs coucou

Shared letters: cou. Private to "Corfou": fr. Private to "coucou": -.

"Corfou" · 6 letters · shape CVCCVV  ·  "coucou" · 6 letters · shape CVVCVV

Known mistypes of this pair

  • Corfou ← ccorfou · cofrou · corffou · corfuo · corofu · corrfou · crofou · ocrfou
  • coucou ← ccoucou · cocuou · couccou · coucuo · couocu · cuocou · ocucou

Frequently Asked Questions

Do "Corfou" and "coucou" mean the same thing in a sentence?
No - they are not even the same part of speech. "Corfou" is a name and "coucou" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "Corfou" vs "coucou" - which ranks higher?
"coucou" is the more common of the two: it sits at frequency rank #5,440 in our French list, against #43,362 for "Corfou". 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 "Corfou" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coucou" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #175,926 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "Corfou" and "coucou" also get mixed up with nearby pairs, the highest-scored neighbour is "Corfou vs Corot". 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 #175,926 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