focavsFormWhich spelling fits?

Quick tell: foca is a adjective, Form is a noun, so they fill different roles in a sentence.

Which to use

“foca” is an adjective and “Form” is a noun - they look or sound alike but fill different roles in a sentence.

#8,772
“foca” frequency rank
#18,599
“Form” frequency rank
27371
confusion score

Side-by-Side Comparison

Feature foca Form
Definition forma atenuada de, e o mesmo que foda forma

Where the eye mixes foca and Form

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
foca
4 ch
Form

Look-alike desk: foca vs Form

These two trip readers on the page rather than in the ear: foca is /ˈfɔ.kɐ/ while Form is /fɔʁm/. Spoken aloud the problem disappears. In writing it persists, because they share most of their letters but differ in 2 positions, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 27371, derived from the frequency rank of both members and their visual similarity.

foca is recorded at frequency rank #8,772, classified as anadj, pronounced /ˈfɔ.kɐ/. Form is at rank #18,599, tagged as anoun, pronounced /fɔʁm/.

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 27371, this pair ranks #41,598 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of foca vs Form

Shared letters: fo. Private to "foca": ac. Private to "Form": mr.

"foca" · 4 letters · shape CVCV  ·  "Form" · 4 letters · shape CVCC

Known mistypes of this pair

  • focafcoa · ffoca · foac · focca · ofca
  • Formfform · fomr · formm · forrm · from · ofrm

Frequently Asked Questions

Can "foca" and "Form" be used interchangeably?
No - they are not even the same part of speech. "foca" is an adjective and "Form" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "foca" or "Form" show up more?
"foca" is the more common of the two: it sits at frequency rank #8,772 in our Portuguese list, against #18,599 for "Form". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "foca" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "Form" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #41,598 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "foca" and "Form" also get mixed up with nearby pairs, the highest-scored neighbour is "fern vs Form". 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 #41,598 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list