uséevsusineWhat's the difference?

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

Which to use

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

#30,852
“usée” frequency rank
#2,106
“usine” frequency rank
32958
confusion score

Side-by-Side Comparison

Feature usée usine
Definition Féminin singulier de usé. Établissement pourvu de machines, où l’on travaille des matières premières pour en tirer certains produits.

Where the eye mixes usée and usine

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. usée runs 4 letters (VCVV) against usine's 5 (VCVCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
usée
5 ch
usine

Visual trap between usée and usine

These two trip readers on the page rather than in the ear: usée is \y.ze\ while usine is \y.zin\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 32958, derived from the frequency rank of both members and their visual similarity.

usée is recorded at frequency rank #30,852, classified as anadj, pronounced \y.ze\. usine is at rank #2,106, tagged as anoun, pronounced \y.zin\.

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 32958, this pair ranks #293,833 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of usée vs usine

Shared letters: esu. Private to "usée": é. Private to "usine": in.

"usée" · 4 letters · shape VCVV  ·  "usine" · 5 letters · shape VCVCV

Known mistypes of this pair

  • usine ← suine · uisne · usien · usinne · usnie · ussine

Frequently Asked Questions

Can "usée" and "usine" be used interchangeably?
No - they are not even the same part of speech. "usée" is an adjective and "usine" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "usée" vs "usine" - which ranks higher?
"usine" is the more common of the two: it sits at frequency rank #2,106 in our French list, against #30,852 for "usée". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

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 "usée" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "usine" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #293,833 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "usée" and "usine" also get mixed up with nearby pairs, the highest-scored neighbour is "urée vs usée". 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 #293,833 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