e vs eco, What's the Difference?

Which to use

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

#5
“e” frequency rank: #7,146
“eco” frequency rank: 7151
confusion score

Side-by-Side Comparison

Feature	e	eco
Definition	usado para unir orações ou termos de mesma natureza gramatical	expressa nojo

Where the eye mixes e and eco

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

1 ch

3 ch

eco

Look-alike desk: e vs eco

These two trip readers on the page rather than in the ear: e is /i/ while eco is /ˈɛ.ku/. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 extra letter(s) - “e” sits inside “eco”, and the parts of speech differ too (conjunction vs intj), which is usually the fastest check. Our composite confusion score for this pair is 7151, derived from the frequency rank of both members and their visual similarity.

e is recorded at frequency rank #5, classified as aconj, pronounced /i/. eco is at rank #7,146, tagged as anintj, pronounced /ˈɛ.ku/.

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 7151, this pair ranks #67,060 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of e vs eco

Shared letters: e. Private to "e": -. Private to "eco": co.

"e" · 1 letters · shape V · "eco" · 3 letters · shape VCV

Frequently Asked Questions

Is swapping "e" for "eco" ever safe?

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

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

"e" is the more common of the two: it sits at frequency rank #5 in our Portuguese list, against #7,146 for "eco". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

Full dictionary entry for "e" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "eco" - compare definitions side by side with the headword page. Word entry
This pair ranks #67,060 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"e" and "eco" also get mixed up with nearby pairs, the highest-scored neighbour is "eco vs elio". Nearby pair

Confusion rank #67,060 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.