éthervsethnoWhich spelling fits?

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

Which to use

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

#27,671
“éther” frequency rank
#40,253
“ethno” frequency rank
67924
confusion score

Side-by-Side Comparison

Feature éther ethno
Definition Substance que l’on supposait remplir l’espace intersidéral. Ethnique, tribal.

Letter map: éther vs ethno

Shared letters muted; letters that set éther and ethno apart highlighted. Shared run: 2.

5 ch
éther
5 ch
ethno

Grammar separator: éther vs ethno

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: éther is anoun and ethnoanadjective. On the page they share most of their letters but differ in 3 positions. Our composite confusion score for this pair is 67924, derived from the frequency rank of both members and their visual similarity.

éther is recorded at frequency rank #27,671, classified as anoun, pronounced \e.tɛʁ\. ethno is at rank #40,253, tagged as anadj.

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 67924, this pair ranks #61,371 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of éther vs ethno

Shared letters: eht. Private to "éther": . Private to "ethno": no.

"éther" · 5 letters · shape VCCVC  ·  "ethno" · 5 letters · shape VCCCV

Known mistypes of this pair

  • ethnoehtno · ethhno · ethnno · ethon · etnho · etthno · tehno

Frequently Asked Questions

Can "éther" and "ethno" be used interchangeably?
No - they are not even the same part of speech. "éther" is a noun and "ethno" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "éther" or "ethno" show up more?
"éther" is the more common of the two: it sits at frequency rank #27,671 in our French list, against #40,253 for "ethno". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Done with this confusable. These links stay specific to "éther" and "ethno".

  • Full dictionary entry for "éther" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ethno" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #61,371 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "éther" and "ethno" also get mixed up with nearby pairs, the highest-scored neighbour is "ethno vs Etna". 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 #61,371 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