BíbliavsbiliãoWhat's the difference?

Quick tell: Bíblia is a noun, bilião is an adjective, so they fill different roles in a sentence.

Which to use

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

#2,862
“Bíblia” frequency rank
#44,716
“bilião” frequency rank
47578
confusion score

Side-by-Side Comparison

Feature Bíblia bilião
Definition livro sagrado dos cristãos; é por eles considerado como tendo sido escrito por homens inspirados pelo Espírito Santo; é composto por duas partes, o Antigo Testamento (partilhado com a Torah judia) e o Novo Testamento, após o nascimento de Jesus Cristo milhão de milhões (10¹² = 1.000.000.000.000)

Letter map: Bíblia vs bilião

Shared letters muted; letters that set Bíblia and bilião apart highlighted. Shared run: 3. Bíblia (CVCCVV) and bilião (CVCVVV) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

6 ch
Bíblia
6 ch
bilião

Grammar separator: Bíblia vs bilião

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: Bíblia is anoun and biliãoanadjective. On the page they share most of their letters but differ in 5 positions. Our composite confusion score for this pair is 47578, derived from the frequency rank of both members and their visual similarity.

Bíblia is recorded at frequency rank #2,862, classified as anoun. bilião is at rank #44,716, tagged as anadj, pronounced /bi.ˈljɐ̃w̃/.

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 47578, this pair ranks #17,660 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of Bíblia vs bilião

Shared letters: bil. Private to "Bíblia": aí. Private to "bilião": oã.

"Bíblia" · 6 letters · shape CVCCVV  ·  "bilião" · 6 letters · shape CVCVVV

Frequently Asked Questions

Can "Bíblia" and "bilião" be used interchangeably?
No - they are not even the same part of speech. "Bíblia" is a noun and "bilião" an adjective, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "Bíblia" or "bilião"?
"Bíblia" is the more common of the two: it sits at frequency rank #2,862 in our Portuguese list, against #44,716 for "bilião". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

You've compared "Bíblia" and "bilião". Here's where to go from here.

  • Full dictionary entry for "Bíblia" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bilião" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #17,660 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
  • "Bíblia" and "bilião" also get mixed up with nearby pairs, the highest-scored neighbour is "bilião vs biliar". Nearby pair

Confusion rank #17,660 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