BvsboxTell them apart

Quick tell: B is a symbol, box is a noun, so they fill different roles in a sentence.

Which to use

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

#734
“B” frequency rank
#6,381
“box” frequency rank
7115
confusion score

Side-by-Side Comparison

Feature B box
Definition letra do alfabeto latino cada espaço subdividido por parede ou extrutura similar e que é destinado ao uso comercial dentro de uma construção maior

Letter map: B vs box

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

1 ch
B
3 ch
box

Grammar separator: B vs box

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: B is asymbol and boxanoun. On the page they differ by 2 extra letter(s) - “B” sits inside “box”. Our composite confusion score for this pair is 7115, derived from the frequency rank of both members and their visual similarity.

B is recorded at frequency rank #734, classified as asymbol. box is at rank #6,381, 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 7115, this pair ranks #67,111 of 75,631 scored Portuguese confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of B vs box

Shared letters: b. Private to "B": -. Private to "box": ox.

"B" · 1 letters · shape C  ·  "box" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "B" for "box" ever safe?
No - they are not even the same part of speech. "B" is a symbol and "box" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary Portuguese text, does "B" or "box" show up more?
"B" is the more common of the two: it sits at frequency rank #734 in our Portuguese list, against #6,381 for "box". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "B" vs "box" is on the table, pick a follow-up below.

  • Full dictionary entry for "B" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "box" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #67,111 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "B" and "box" also get mixed up with nearby pairs, the highest-scored neighbour is "box vs bué". Nearby pair

Confusion rank #67,111 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