blasvsboaWhich spelling fits?

Quick tell: blas is a verb, boa is a noun, so they fill different roles in a sentence.

Which to use

“blas” is a verb and “boa” is a noun - they look or sound alike but fill different roles in a sentence.

#36,276
“blas” frequency rank
#29,666
“boa” frequency rank
65942
confusion score

Side-by-Side Comparison

Feature blas boa
Definition Deuxième personne du singulier de l’impératif présent de blasen. Genre de serpents qui se trouvent principalement en Amérique du Sud et qui sont les plus forts et les plus grands que l’on connaisse.

Where the eye mixes blas and boa

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
blas
3 ch
boa

Why the eye confuses blas with boa

These two trip readers on the page rather than in the ear: blas is \blaːs\ while boa is \bo.a\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 65942, derived from the frequency rank of both members and their visual similarity.

blas is recorded at frequency rank #36,276, classified as averb, pronounced \blaːs\. boa is at rank #29,666, tagged as anoun, pronounced \bo.a\.

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 65942, this pair ranks #70,067 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of blas vs boa

Shared letters: ab. Private to "blas": ls. Private to "boa": o.

"blas" · 4 letters · shape CCVC  ·  "boa" · 3 letters · shape CVV

Known mistypes of this pair

  • blasbblas · blass · bllas · blsa

Frequently Asked Questions

Do "blas" and "boa" mean the same thing in a sentence?
No - they are not even the same part of speech. "blas" is a verb and "boa" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "blas" vs "boa" - which ranks higher?
"boa" is the more common of the two: it sits at frequency rank #29,666 in our French list, against #36,276 for "blas". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Eye-level mix-up between "blas" and "boa" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "blas" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "boa" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #70,067 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "blas" and "boa" also get mixed up with nearby pairs, the highest-scored neighbour is "bela vs blas". 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 #70,067 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list