Which to use
“eco” is an intj and “em” is a preposition - they look or sound alike but fill different roles in a sentence.
- #7,146
- “eco” frequency rank
- #7
- “em” frequency rank
- 7153
- confusion score
Side-by-Side Comparison
| Feature | eco | em |
|---|---|---|
| Definition | expressa nojo | exprime a ideia de: |
Where the eye mixes eco and em
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.
Why the eye confuses eco with em
These two trip readers on the page rather than in the ear: eco is /ˈɛ.ku/ while em is /ɐj̃/. 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 (intj vs preposition), which is usually the fastest check. Our composite confusion score for this pair is 7153, 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/. em is at rank #7, tagged as aprep, pronounced /ɐj̃/.
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 7153, this pair ranks #67,057 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of eco vs em
Shared letters: e. Private to "eco": co. Private to "em": m.
"eco" · 3 letters · shape VCV · "em" · 2 letters · shape VC
Frequently Asked Questions
Do "eco" and "em" mean the same thing in a sentence?
Frequency check: "eco" vs "em" - which ranks higher?
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 "eco" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "em" - compare definitions side by side with the headword page. Word entry
- This pair ranks #67,057 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "eco" and "em" also get mixed up with nearby pairs, the highest-scored neighbour is "eco vs elio". Nearby pair
Confusion rank #67,057 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.