blauvsbleuConfusable pair

Which to use

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

#39,501
“blau” frequency rank
#33,298
“bleu” frequency rank
72799
confusion score

Side-by-Side Comparison

Feature blau bleu
Definition azul azul

Where the eye mixes blau and bleu

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

4 ch
blau
4 ch
bleu

Why the eye confuses blau with bleu

A purely visual mix-up. blau (/blaʊ̯/ ouvir^(fonte ?)) and bleu (/blø/) 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 - a in “blau” becomes e in “bleu”. Our composite confusion score for this pair is 72799, derived from the frequency rank of both members and their visual similarity.

blau is recorded at frequency rank #39,501, classified as anadj, pronounced /blaʊ̯/ ouvir^(fonte ?). bleu is at rank #33,298, tagged as anadj, pronounced /blø/.

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 72799, this pair ranks #2,946 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of blau vs bleu

Shared letters: blu. Private to "blau": a. Private to "bleu": e.

"blau" · 4 letters · shape CCVV  ·  "bleu" · 4 letters · shape CCVV

Known mistypes of this pair

  • blaubalu · bblau · bllau · lbau
  • bleubbleu · belu · blleu · lbeu

Frequently Asked Questions

Can "blau" and "bleu" be used interchangeably?
No. They are said differently (/blaʊ̯/ ouvir^(fonte ?) versus /blø/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "blau" or "bleu"?
"bleu" is the more common of the two: it sits at frequency rank #33,298 in our Portuguese list, against #39,501 for "blau". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "blau" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bleu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,946 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "blau" and "bleu" also get mixed up with nearby pairs, the highest-scored neighbour is "baús vs blau". 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 #2,946 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