fossevsfosteWhat's the difference?

Which to use

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

#348
“fosse” frequency rank
#11,469
“foste” frequency rank
11817
confusion score

Side-by-Side Comparison

Feature fosse foste
Definition primeira pessoa do singular do pretérito imperfeito do conjuntivo do verbo ser segunda pessoa do singular do pretérito perfeito do indicativo do verbo ser

Where the eye mixes fosse and foste

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. fosse and foste follow the identical consonant-vowel pattern (CVCCV). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
fosse
5 ch
foste

Why the eye confuses fosse with foste

A purely visual mix-up. fosse (/ˈfo.si/) and foste (/ˈfos.ʧi/) 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 a single letter - s in “fosse” becomes t in “foste”. Our composite confusion score for this pair is 11817, derived from the frequency rank of both members and their visual similarity.

fosse is recorded at frequency rank #348, classified as averb, pronounced /ˈfo.si/. foste is at rank #11,469, tagged as averb, pronounced /ˈfos.ʧi/.

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 11817, this pair ranks #60,946 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of fosse vs foste

Shared letters: efos. Private to "fosse": -. Private to "foste": t.

"fosse" · 5 letters · shape CVCCV  ·  "foste" · 5 letters · shape CVCCV

Known mistypes of this pair

  • fosse ← ffosse · fose · foses · fsose · ofsse
  • foste ← ffoste · foset · fosste · fostte · fotse · fsote · ofste

Frequently Asked Questions

Is swapping "fosse" for "foste" ever safe?
No. They are said differently (/ˈfo.si/ versus /ˈfos.ʧi/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "fosse" vs "foste" - which ranks higher?
"fosse" is the more common of the two: it sits at frequency rank #348 in our Portuguese list, against #11,469 for "foste". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

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

  • Full dictionary entry for "fosse" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "foste" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #60,946 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "fosse" and "foste" also get mixed up with nearby pairs, the highest-scored neighbour is "fosco vs foste". 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 #60,946 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