ervsetaWhich spelling fits?

Quick tell: er is a pronoun, eta is a noun, so they fill different roles in a sentence.

Which to use

“er” is a pronoun and “eta” is a noun - they look or sound alike but fill different roles in a sentence.

#10,335
“er” frequency rank
#5,959
“eta” frequency rank
16294
confusion score

Side-by-Side Comparison

Feature er eta
Definition Él. Nombre de la "e" larga del alfabeto griego.

Where the eye mixes er and eta

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

2 ch
er
3 ch
eta

Visual trap between er and eta

These two trip readers on the page rather than in the ear: er is [ˈeːɐ̯] while eta is [ˈet̪a]. 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 (pronoun vs noun), which is usually the fastest check. Our composite confusion score for this pair is 16294, derived from the frequency rank of both members and their visual similarity.

er is recorded at frequency rank #10,335, classified as apron, pronounced [ˈeːɐ̯]. eta is at rank #5,959, tagged as anoun, pronounced [ˈet̪a].

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 16294, this pair ranks #276,752 of 323,831 scored Spanish confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of er vs eta

Shared letters: e. Private to "er": r. Private to "eta": at.

"er" · 2 letters · shape VC  ·  "eta" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "er" for "eta" ever safe?
No - they are not even the same part of speech. "er" is a pronoun and "eta" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Spanish text, does "er" or "eta" show up more?
"eta" is the more common of the two: it sits at frequency rank #5,959 in our Spanish list, against #10,335 for "er". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "er" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "eta" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #276,752 of 323,831 scored Spanish confusable pairs in this corpus vintage. Corpus statistics
  • "er" and "eta" also get mixed up with nearby pairs, the highest-scored neighbour is "EPL vs er". Nearby pair

Confusion rank #276,752 of 323,831 scored Spanish pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list