bluvsbokTell them apart

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

Which to use

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

#15,516
“blu” frequency rank
#41,372
“bok” frequency rank
56888
confusion score

Side-by-Side Comparison

Feature blu bok
Definition azul bode

Where the eye mixes blu and bok

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
blu
3 ch
bok

Look-alike desk: blu vs bok

These two trip readers on the page rather than in the ear: blu is /blu/ ouvir^(fonte ?) while bok is /bɔk/. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 56888, derived from the frequency rank of both members and their visual similarity.

blu is recorded at frequency rank #15,516, classified as anadj, pronounced /blu/ ouvir^(fonte ?). bok is at rank #41,372, tagged as anoun, pronounced /bɔk/.

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 56888, this pair ranks #9,671 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of blu vs bok

Shared letters: b. Private to "blu": lu. Private to "bok": ko.

"blu" · 3 letters · shape CCV  ·  "bok" · 3 letters · shape CVC

Frequently Asked Questions

Can "blu" and "bok" be used interchangeably?
No - they are not even the same part of speech. "blu" is an adjective and "bok" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "blu" vs "bok" - which ranks higher?
"blu" is the more common of the two: it sits at frequency rank #15,516 in our Portuguese list, against #41,372 for "bok". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

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

  • Full dictionary entry for "blu" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bok" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #9,671 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "blu" and "bok" also get mixed up with nearby pairs, the highest-scored neighbour is "bok vs bué". Nearby pair

Confusion rank #9,671 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