BvsbiTell them apart

Quick tell: B is a symbol, bi is an adjective, so they fill different roles in a sentence.

Which to use

“B” is a symbol and “bi” is an adjective - they look or sound alike but fill different roles in a sentence.

#734
“B” frequency rank
#7,501
“bi” frequency rank
8235
confusion score

Side-by-Side Comparison

Feature B bi
Definition letra do alfabeto latino bissexual

Letter map: B vs bi

Shared letters muted; letters that set B and bi apart highlighted. Shared run: 1.

1 ch
B
2 ch
bi

Grammar separator: B vs bi

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: B is asymbol and bianadjective. On the page they differ by 1 extra letter(s) - “B” sits inside “bi”. Our composite confusion score for this pair is 8235, derived from the frequency rank of both members and their visual similarity.

B is recorded at frequency rank #734, classified as asymbol. bi is at rank #7,501, tagged as anadj.

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 8235, this pair ranks #65,626 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of B vs bi

Shared letters: b. Private to "B": -. Private to "bi": i.

"B" · 1 letters · shape C  ·  "bi" · 2 letters · shape CV

Frequently Asked Questions

Is swapping "B" for "bi" ever safe?
No - they are not even the same part of speech. "B" is a symbol and "bi" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "B" or "bi"?
"B" is the more common of the two: it sits at frequency rank #734 in our Portuguese list, against #7,501 for "bi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Done with this confusable. These links stay specific to "B" and "bi".

  • Full dictionary entry for "B" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #65,626 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "B" and "bi" also get mixed up with nearby pairs, the highest-scored neighbour is "bi vs bile". Nearby pair

Confusion rank #65,626 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