Which to use
“éter” is a noun and “eterno” is an adjective - they look or sound alike but fill different roles in a sentence.
- #29,001
- “éter” frequency rank
- #5,509
- “eterno” frequency rank
- 34510
- confusion score
Side-by-Side Comparison
| Feature | éter | eterno |
|---|---|---|
| Definition | Fluido hipótetico que se había postulado para explicar la propagación de la luz a través del espacio vacío. | Que no tuvo principio ni tendrá fin |
Where the eye mixes éter and eterno
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Look-alike desk: éter vs eterno
These two trip readers on the page rather than in the ear: éter is [ˈet̪eɾ] while eterno is [eˈt̪eɾno]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 34510, derived from the frequency rank of both members and their visual similarity.
éter is recorded at frequency rank #29,001, classified as anoun, pronounced [ˈet̪eɾ]. eterno is at rank #5,509, tagged as anadj, pronounced [eˈt̪eɾno].
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 34510, this pair ranks #191,052 of 323,831 scored Spanish confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of éter vs eterno
Shared letters: ert. Private to "éter": é. Private to "eterno": no.
"éter" · 4 letters · shape VCVC · "eterno" · 6 letters · shape VCVCCV
Known mistypes of this pair
- eterno ← eetrno · etenro · eternno · eteron · eterrno · etreno · etterno · teerno
Frequently Asked Questions
Can "éter" and "eterno" be used interchangeably?
Which is more common, "éter" or "eterno"?
Useful next steps
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "éter" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "eterno" - compare definitions side by side with the headword page. Word entry
- This pair ranks #191,052 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
- "éter" and "eterno" also get mixed up with nearby pairs, the highest-scored neighbour is "egeo vs éter". 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 #191,052 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.