caféinevsCayenneWhich spelling fits?

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

Which to use

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

#21,878
“caféine” frequency rank
#16,826
“Cayenne” frequency rank
38704
confusion score

Side-by-Side Comparison

Feature caféine Cayenne
Definition Composé chimique dérivé triméthylé de la xanthine et principe actif du café aux effets stimulants sur le système nerveux central. Fleuve situé dans le département de la Guyane française, en Amérique du Sud.

Where the eye mixes caféine and Cayenne

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

7 ch
caféine
7 ch
Cayenne

Look-alike desk: caféine vs Cayenne

These two trip readers on the page rather than in the ear: caféine is \ka.fe.in\ while Cayenne is \ka.jɛn\. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 3 positions, and the parts of speech differ too (noun vs name), which is usually the fastest check. Our composite confusion score for this pair is 38704, derived from the frequency rank of both members and their visual similarity.

caféine is recorded at frequency rank #21,878, classified as anoun, pronounced \ka.fe.in\. Cayenne is at rank #16,826, tagged as aname, pronounced \ka.jɛn\.

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 38704, this pair ranks #253,386 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of caféine vs Cayenne

Shared letters: acen. Private to "caféine": fié. Private to "Cayenne": y.

"caféine" · 7 letters · shape CVCVVCV  ·  "Cayenne" · 7 letters · shape CVVVCCV

Known mistypes of this pair

  • Cayenneacyenne · caeynne · cayene · cayenen · caynene · cayyenne · ccayenne · cyaenne

Frequently Asked Questions

Is swapping "caféine" for "Cayenne" ever safe?
No - they are not even the same part of speech. "caféine" is a noun and "Cayenne" a name, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "caféine" or "Cayenne"?
"Cayenne" is the more common of the two: it sits at frequency rank #16,826 in our French list, against #21,878 for "caféine". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "caféine" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Cayenne" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #253,386 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "caféine" and "Cayenne" also get mixed up with nearby pairs, the highest-scored neighbour is "caféine vs codéine". 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 #253,386 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