composévscompostWhich spelling fits?

Quick tell: composé is a adjective, compost is a noun, so they fill different roles in a sentence.

Which to use

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

#2,219
“composé” frequency rank
#25,598
“compost” frequency rank
27817
confusion score

Side-by-Side Comparison

Feature composé compost
Definition Qui est formé par la réunion d’éléments divers. Mélange de matières organiques que l’on rassemble en silo, en tas ou dans un fût à composter afin qu'elles subissent une décomposition aérobique pour former un humus stable de bonne qualité qui servira ensuite comme amendement ou couverture de sol.

Where the eye mixes composé and compost

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

7 ch
composé
7 ch
compost

Visual trap between composé and compost

These two trip readers on the page rather than in the ear: composé is \kɔ̃.po.ze\ while compost is \kɔ̃.pɔst\. Spoken aloud the problem disappears. In writing it persists, because they differ by a single letter - é in “composé” becomes t in “compost”, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 27817, derived from the frequency rank of both members and their visual similarity.

composé is recorded at frequency rank #2,219, classified as anadj, pronounced \kɔ̃.po.ze\. compost is at rank #25,598, tagged as anoun, pronounced \kɔ̃.pɔst\.

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 27817, this pair ranks #326,593 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of composé vs compost

Shared letters: cmops. Private to "composé": é. Private to "compost": t.

"composé" · 7 letters · shape CVCCVCV  ·  "compost" · 7 letters · shape CVCCVCC

Known mistypes of this pair

  • compostccompost · cmopost · commpost · comopst · composst · compostt · compots · comppost

Frequently Asked Questions

Is swapping "composé" for "compost" ever safe?
No - they are not even the same part of speech. "composé" is an adjective and "compost" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "composé" or "compost" show up more?
"composé" is the more common of the two: it sits at frequency rank #2,219 in our French list, against #25,598 for "compost". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "composé" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "compost" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #326,593 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "composé" and "compost" also get mixed up with nearby pairs, the highest-scored neighbour is "compos vs compost". 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 #326,593 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