blauvsbreuWhat's the difference?

Quick tell: blau is a adjective, breu is a noun, so they fill different roles in a sentence.

Which to use

“blau” is an adjective and “breu” is a noun - they look or sound alike but fill different roles in a sentence.

#39,501
“blau” frequency rank
#37,209
“breu” frequency rank
76710
confusion score

Side-by-Side Comparison

Feature blau breu
Definition azul sólido escuro, inflamável, obtido a partir de secreções resinosas de várias plantas, especialmente de coníferas (Pinus palustris etc.), ou da destilação do alcatrão; breu de colofônia, colofônia, colofônio [O breu é usado em adesivos, vernizes, isolantes, revestimentos etc., e também em plásticos e na fabricação de papel (engomagem)]

Letter map: blau vs breu

Shared letters muted; letters that set blau and breu apart highlighted. Shared run: 2. blau and breu follow the identical consonant-vowel pattern (CCVV). Same shape at a glance is often the real trap, independent of shared letters.

4 ch
blau
4 ch
breu

Part-of-speech tell for blau / breu

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: blau is anadjective and breuanoun. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 76710, 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 ?). breu is at rank #37,209, tagged as anoun.

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 76710, this pair ranks #2,037 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of blau vs breu

Shared letters: bu. Private to "blau": al. Private to "breu": er.

"blau" · 4 letters · shape CCVV  ·  "breu" · 4 letters · shape CCVV

Known mistypes of this pair

  • blau ← balu · bblau · bllau · lbau
  • breu ← bbreu · beru · brreu · brue · rbeu

Frequently Asked Questions

Do "blau" and "breu" mean the same thing in a sentence?
No - they are not even the same part of speech. "blau" is an adjective and "breu" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "blau" or "breu"?
"breu" is the more common of the two: it sits at frequency rank #37,209 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

Pair "blau" vs "breu" is on the table, pick a follow-up below.

  • Full dictionary entry for "blau" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "breu" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #2,037 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "blau" and "breu" 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 #2,037 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