écolovsécolosWhat's the difference?

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

Which to use

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

#16,784
“écolo” frequency rank
#21,512
“écolos” frequency rank
38296
confusion score

Side-by-Side Comparison

Feature écolo écolos
Definition , (Parfois péjoratif) Écologiste. Pluriel de écolo.

Same sound, different letters: écolo vs écolos

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 5 letters. écolo runs 5 letters (VCVCV) against écolos's 6 (VCVCVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
écolo
6 ch
écolos

Same sound, different spelling - écolo / écolos

Say them out loud and nothing separates them: écolo and écolos carry the same recorded pronunciation, \e.kɔ.lo\. Grammar is what tells them apart: one is anoun, the other anadjective, so most sentences will only accept one of them. They differ by 1 extra letter(s) - “écolo” sits inside “écolos”. Our composite confusion score for this pair is 38296, derived from the frequency rank of both members and their visual similarity.

écolo is recorded at frequency rank #16,784, classified as anoun, pronounced \e.kɔ.lo\. écolos is at rank #21,512, tagged as anadj, pronounced \e.kɔ.lo\.

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 38296, this pair ranks #256,261 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of écolo vs écolos

Shared letters: cloé. Private to "écolo": -. Private to "écolos": s.

"écolo" · 5 letters · shape VCVCV  ·  "écolos" · 6 letters · shape VCVCVC

Frequently Asked Questions

Is swapping "écolo" for "écolos" ever safe?
No - they are not even the same part of speech. "écolo" is a noun and "écolos" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "écolo" or "écolos" show up more?
"écolo" is the more common of the two: it sits at frequency rank #16,784 in our French list, against #21,512 for "écolos". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

"écolo" and "écolos" share a sound, keep the gloss open, then jump to the headword or a nearby trap.

  • Full dictionary entry for "écolo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "écolos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #256,261 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "écolo" and "écolos" also get mixed up with nearby pairs, the highest-scored neighbour is "écolo vs écope". Nearby pair

Confusion rank #256,261 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