Which to use
“formar” and “fumar” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #3,014
- “formar” frequency rank
- #4,649
- “fumar” frequency rank
- 7663
- confusion score
Side-by-Side Comparison
| Feature | formar | fumar |
|---|---|---|
| Definition | dar forma a; constituir; compor | aspirar o fumo de |
Where the eye mixes formar and fumar
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: formar vs fumar
A purely visual mix-up. formar (/fuɾ.ˈmaɾ/) and fumar (/fu.ˈmaɾ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 7663, derived from the frequency rank of both members and their visual similarity.
formar is recorded at frequency rank #3,014, classified as averb, pronounced /fuɾ.ˈmaɾ/. fumar is at rank #4,649, tagged as averb, pronounced /fu.ˈmaɾ/.
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 7663, this pair ranks #66,429 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of formar vs fumar
Shared letters: afmr. Private to "formar": o. Private to "fumar": u.
"formar" · 6 letters · shape CVCCVC · "fumar" · 5 letters · shape CVCVC
Known mistypes of this pair
Frequently Asked Questions
Can "formar" and "fumar" be used interchangeably?
Which is more common, "formar" or "fumar"?
Useful next steps
Eye-level mix-up between "formar" and "fumar" is sorted above. Next: full entries or other pairs that share a letter shape.
- Full dictionary entry for "formar" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "fumar" - compare definitions side by side with the headword page. Word entry
- This pair ranks #66,429 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
- "formar" and "fumar" also get mixed up with nearby pairs, the highest-scored neighbour is "fartar vs formar". 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 #66,429 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.