fobiavsfossaWhich spelling fits?

Which to use

“fobia” and “fossa” are a confusable Portuguese pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#25,673
“fobia” frequency rank
#17,291
“fossa” frequency rank
42964
confusion score

Side-by-Side Comparison

Feature fobia fossa
Definition transtorno psicológico no qual a pessoa tem um medo ou aversão exagerado de alguma coisa grande abertura na terra

Where the eye mixes fobia and fossa

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. fobia (CVCVV) and fossa (CVCCV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
fobia
5 ch
fossa

Look-alike desk: fobia vs fossa

A purely visual mix-up. fobia (/fu.ˈbi.ɐ/) and fossa (/ˈfɔ.sɐ/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 42964, derived from the frequency rank of both members and their visual similarity.

fobia is recorded at frequency rank #25,673, classified as anoun, pronounced /fu.ˈbi.ɐ/. fossa is at rank #17,291, tagged as anoun, pronounced /ˈfɔ.sɐ/.

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 42964, this pair ranks #22,732 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fobia vs fossa

Shared letters: afo. Private to "fobia": bi. Private to "fossa": s.

"fobia" · 5 letters · shape CVCVV  ·  "fossa" · 5 letters · shape CVCCV

Known mistypes of this pair

  • fobia ← fboia · ffobia · fobai · fobbia · foiba · ofbia
  • fossa ← ffossa · fosa · fosas · fsosa · ofssa

Frequently Asked Questions

Is swapping "fobia" for "fossa" ever safe?
No. They are said differently (/fu.ˈbi.ɐ/ versus /ˈfɔ.sɐ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary Portuguese text, does "fobia" or "fossa" show up more?
"fossa" is the more common of the two: it sits at frequency rank #17,291 in our Portuguese list, against #25,673 for "fobia". 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 "fobia" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fossa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #22,732 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "fobia" and "fossa" also get mixed up with nearby pairs, the highest-scored neighbour is "faia vs fobia". 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 #22,732 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