eco vs er, What's the Difference?

Which to use

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

#7,146
“eco” frequency rank: #11,866
“er” frequency rank: 19012
confusion score

Side-by-Side Comparison

Feature	eco	er
Definition	expressa nojo	ele, aquele, aquilo, terceira pessoa do masculino singular do caso nominativo

Letter map: eco vs er

Shared letters muted; letters that set eco and er apart highlighted. Shared run: 1.

3 ch

eco

2 ch

Role in the sentence - eco and er

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: eco is anintj and erapronoun. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 19012, derived from the frequency rank of both members and their visual similarity.

eco is recorded at frequency rank #7,146, classified as anintj, pronounced /ˈɛ.ku/. er is at rank #11,866, tagged as apron.

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 19012, this pair ranks #51,850 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of eco vs er

Shared letters: e. Private to "eco": co. Private to "er": r.

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

Frequently Asked Questions

Do "eco" and "er" mean the same thing in a sentence?

No - they are not even the same part of speech. "eco" is an intj and "er" a pronoun, so a sentence built for one is usually ungrammatical with the other.

In ordinary Portuguese text, does "eco" or "er" show up more?

"eco" is the more common of the two: it sits at frequency rank #7,146 in our Portuguese list, against #11,866 for "er". 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 "eco" and "er".

Full dictionary entry for "eco" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "er" - compare definitions side by side with the headword page. Word entry
This pair ranks #51,850 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"eco" and "er" also get mixed up with nearby pairs, the highest-scored neighbour is "er vs être". Nearby pair

Confusion rank #51,850 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.