forovsfoscoWhich spelling fits?

Quick tell: foro is a noun, fosco is an adjective, so they fill different roles in a sentence.

Which to use

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

#9,497
“foro” frequency rank
#48,427
“fosco” frequency rank
57924
confusion score

Side-by-Side Comparison

Feature foro fosco
Definition tribunal de justiça; lugar onde funcionam os órgãos do poder judiciário; fórum; jurisdição, alçada, poder não brunido, sem brilho, embaciado, não transparente

Where the eye mixes foro and fosco

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. foro runs 4 letters (CVCV) against fosco's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.

4 ch
foro
5 ch
fosco

Visual trap between foro and fosco

These two trip readers on the page rather than in the ear: foro is /ˈfo.ɾu/ while fosco is /ˈfoʃ.ku/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 57924, derived from the frequency rank of both members and their visual similarity.

foro is recorded at frequency rank #9,497, classified as anoun, pronounced /ˈfo.ɾu/. fosco is at rank #48,427, tagged as anadj, pronounced /ˈfoʃ.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 57924, this pair ranks #9,047 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of foro vs fosco

Shared letters: fo. Private to "foro": r. Private to "fosco": cs.

"foro" · 4 letters · shape CVCV  ·  "fosco" · 5 letters · shape CVCCV

Known mistypes of this pair

  • forofforo · foor · froo · ofro
  • foscoffosco · focso · foscco · fosoc · fossco · fsoco · ofsco

Frequently Asked Questions

Is swapping "foro" for "fosco" ever safe?
No - they are not even the same part of speech. "foro" is a noun and "fosco" an adjective, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "foro" or "fosco" show up more?
"foro" is the more common of the two: it sits at frequency rank #9,497 in our Portuguese list, against #48,427 for "fosco". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "foro" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fosco" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #9,047 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "foro" and "fosco" also get mixed up with nearby pairs, the highest-scored neighbour is "fisco vs fosco". 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 #9,047 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