falirvsfluirTell them apart

Which to use

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

#27,479
“falir” frequency rank
#14,377
“fluir” frequency rank
41856
confusion score

Side-by-Side Comparison

Feature falir fluir
Definition ir à falência, não ter como cumprir com suas obrigações financeiras correr como os líquidos

Letter map: falir vs fluir

Shared letters muted; letters that set falir and fluir apart highlighted. Shared run: 4. falir (CVCVC) and fluir (CCVVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
falir
5 ch
fluir

Corpus notes: falir and fluir

falir and fluir are indexed as a confusable Portuguese pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 41856, derived from the frequency rank of both members and their visual similarity.

falir is recorded at frequency rank #27,479, classified as averb. fluir is at rank #14,377, tagged as averb, pronounced /ˈflwiɾ/.

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 41856, this pair ranks #24,013 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of falir vs fluir

Shared letters: filr. Private to "falir": a. Private to "fluir": u.

"falir" · 5 letters · shape CVCVC  ·  "fluir" · 5 letters · shape CCVVC

Known mistypes of this pair

  • falir ← aflir · failr · falirr · fallir · falri · ffalir · flair
  • fluir ← ffluir · fliur · flluir · fluirr · fluri · fulir · lfuir

Frequently Asked Questions

Can "falir" and "fluir" be used interchangeably?
No. They share most of their letters but differ in 2 positions, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "falir" vs "fluir" - which ranks higher?
"fluir" is the more common of the two: it sits at frequency rank #14,377 in our Portuguese list, against #27,479 for "falir". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "falir" vs "fluir" is on the table, pick a follow-up below.

  • Full dictionary entry for "falir" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fluir" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #24,013 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "falir" and "fluir" also get mixed up with nearby pairs, the highest-scored neighbour is "faia vs falir". 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 #24,013 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