er vs eu, What's the Difference?

Which to use

“er” and “eu” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#11,866
“er” frequency rank: #20
“eu” frequency rank: 11886
confusion score

Side-by-Side Comparison

Feature	er	eu
Definition	ele, aquele, aquilo, terceira pessoa do masculino singular do caso nominativo	usado por um ser para indicar a si próprio

Letter map: er vs eu

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

2 ch

Corpus notes: er and eu

er and eu are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by a single letter - r in “er” becomes u in “eu”. Our composite confusion score for this pair is 11886, derived from the frequency rank of both members and their visual similarity.

er is recorded at frequency rank #11,866, classified as apron. eu is at rank #20, tagged as apron, pronounced /ˈew/.

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 11886, this pair ranks #60,860 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of er vs eu

Shared letters: e. Private to "er": r. Private to "eu": u.

"er" · 2 letters · shape VC · "eu" · 2 letters · shape VV

Frequently Asked Questions

Can "er" and "eu" be used interchangeably?

No. They differ by a single letter - r in “er” becomes u in “eu”, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.

Frequency check: "er" vs "eu" - which ranks higher?

"eu" is the more common of the two: it sits at frequency rank #20 in our Portuguese list, against #11,866 for "er". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pair "er" vs "eu" is on the table, pick a follow-up below.

Full dictionary entry for "er" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "eu" - compare definitions side by side with the headword page. Word entry
This pair ranks #60,860 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"er" and "eu" also get mixed up with nearby pairs, the highest-scored neighbour is "er vs être". Nearby pair

Confusion rank #60,860 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.