Which to use
“ferro” and “fierro” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #2,093
- “ferro” frequency rank
- #45,359
- “fierro” frequency rank
- 47452
- confusion score
Side-by-Side Comparison
| Feature | ferro | fierro |
|---|---|---|
| Definition | elemento químico de símbolo Fe, possui o número atômico 26 e massa atômica relativa 55,845 u; é o quarto elemento mais abundante na crosta terrestre; é um metal duro e muito reativo, formando ligas com os mais diversos elementos | ferro |
Letter map: ferro vs fierro
Shared letters muted; letters that set ferro and fierro apart highlighted. Shared run: 5. ferro runs 5 letters (CVCCV) against fierro's 6 (CVVCCV) - the length gap alone is often enough to separate them once you know to check it.
Spelling & dictionary notes on ferro vs fierro
ferro and fierro 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 1 letter(s) in length. Our composite confusion score for this pair is 47452, derived from the frequency rank of both members and their visual similarity.
ferro is recorded at frequency rank #2,093, classified as anoun. fierro is at rank #45,359, tagged as anoun, pronounced /ˈfjero/..
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 47452, this pair ranks #17,798 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.
Orthographic DNA of ferro vs fierro
Shared letters: efor. Private to "ferro": -. Private to "fierro": i.
"ferro" · 5 letters · shape CVCCV · "fierro" · 6 letters · shape CVVCCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "ferro" for "fierro" ever safe?
Which is more common, "ferro" or "fierro"?
After this comparison
You've compared "ferro" and "fierro". Here's where to go from here.
- Full dictionary entry for "ferro" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fierro" - compare definitions side by side with the headword page. Word entry
- This pair ranks #17,798 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "ferro" and "fierro" also get mixed up with nearby pairs, the highest-scored neighbour is "ferra vs fierro". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #17,798 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.