déchetvsdéchusConfusable pair

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

Which to use

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

#15,359
“déchet” frequency rank
#41,240
“déchus” frequency rank
56599
confusion score

Side-by-Side Comparison

Feature déchet déchus
Definition Chute, ce qui tombe d’une matière que l’on travaille et qui peut être réutilisé. Masculin pluriel de déchu.

Where the eye mixes déchet and déchus

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. déchet and déchus follow the identical consonant-vowel pattern (CVCCVC). Same shape at a glance is often the real trap, independent of shared letters.

6 ch
déchet
6 ch
déchus

Look-alike desk: déchet vs déchus

These two trip readers on the page rather than in the ear: déchet is \de.ʃɛ\ while déchus is \de.ʃy\. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 56599, derived from the frequency rank of both members and their visual similarity.

déchet is recorded at frequency rank #15,359, classified as anoun, pronounced \de.ʃɛ\. déchus is at rank #41,240, tagged as anadj, pronounced \de.ʃy\.

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 56599, this pair ranks #120,075 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of déchet vs déchus

Shared letters: cdhé. Private to "déchet": et. Private to "déchus": su.

"déchet" · 6 letters · shape CVCCVC  ·  "déchus" · 6 letters · shape CVCCVC

Frequently Asked Questions

Is swapping "déchet" for "déchus" ever safe?
No - they are not even the same part of speech. "déchet" is a noun and "déchus" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "déchet" or "déchus" show up more?
"déchet" is the more common of the two: it sits at frequency rank #15,359 in our French list, against #41,240 for "déchus". 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 "déchet" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "déchus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #120,075 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "déchet" and "déchus" also get mixed up with nearby pairs, the highest-scored neighbour is "dèche vs déchus". Nearby pair

Confusion rank #120,075 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