fluirvsfluxoWhich spelling fits?

Quick tell: fluir is a verb, fluxo is a noun, so they fill different roles in a sentence.

Which to use

“fluir” is a verb and “fluxo” is a noun - they look or sound alike but fill different roles in a sentence.

#14,377
“fluir” frequency rank
#3,012
“fluxo” frequency rank
17389
confusion score

Side-by-Side Comparison

Feature fluir fluxo
Definition correr como os líquidos movimento

Where the eye mixes fluir and fluxo

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

5 ch
fluir
5 ch
fluxo

Look-alike desk: fluir vs fluxo

These two trip readers on the page rather than in the ear: fluir is /ˈflwiɾ/ while fluxo is /ˈflu.ksu/. 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 (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 17389, derived from the frequency rank of both members and their visual similarity.

fluir is recorded at frequency rank #14,377, classified as averb, pronounced /ˈflwiɾ/. fluxo is at rank #3,012, tagged as anoun, pronounced /ˈflu.ksu/.

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 17389, this pair ranks #53,864 of 75,631 scored Portuguese confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fluir vs fluxo

Shared letters: flu. Private to "fluir": ir. Private to "fluxo": ox.

"fluir" · 5 letters · shape CCVVC  ·  "fluxo" · 5 letters · shape CCVCV

Known mistypes of this pair

  • fluir ← ffluir · fliur · flluir · fluirr · fluri · fulir · lfuir
  • fluxo ← ffluxo · flluxo · fluox · fluxxo · flxuo · fulxo · lfuxo

Frequently Asked Questions

Is swapping "fluir" for "fluxo" ever safe?
No - they are not even the same part of speech. "fluir" is a verb and "fluxo" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "fluir" or "fluxo"?
"fluxo" is the more common of the two: it sits at frequency rank #3,012 in our Portuguese list, against #14,377 for "fluir". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "fluir" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fluxo" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #53,864 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "fluir" and "fluxo" also get mixed up with nearby pairs, the highest-scored neighbour is "fleur vs fluir". 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 #53,864 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