biaisvsbiasConfusable pair

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

Which to use

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

#3,899
“biais” frequency rank
#45,472
“bias” frequency rank
49371
confusion score

Side-by-Side Comparison

Feature biais bias
Definition Qui est de biais, oblique. Préjugé, parti pris.

Where the eye mixes biais and bias

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. biais runs 5 letters (CVVVC) against bias's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.

5 ch
biais
4 ch
bias

Why the eye confuses biais with bias

These two trip readers on the page rather than in the ear: biais is \bjɛ\ while bias is \ˈbaɪ.əs\. 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 (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 49371, derived from the frequency rank of both members and their visual similarity.

biais is recorded at frequency rank #3,899, classified as anadj, pronounced \bjɛ\. bias is at rank #45,472, tagged as anoun, pronounced \ˈbaɪ.əs\.

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 49371, this pair ranks #171,242 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of biais vs bias

Shared letters: abis. Private to "biais": -. Private to "bias": -.

"biais" · 5 letters · shape CVVVC  ·  "bias" · 4 letters · shape CVVC

Known mistypes of this pair

  • biais ← baiis · bbiais · biaiss · biasi · biias · ibais
  • bias ← bais · bbias · biass · bisa · ibas

Frequently Asked Questions

Do "biais" and "bias" mean the same thing in a sentence?
No - they are not even the same part of speech. "biais" is an adjective and "bias" a noun, so a sentence built for one is usually ungrammatical with the other.
In ordinary French text, does "biais" or "bias" show up more?
"biais" is the more common of the two: it sits at frequency rank #3,899 in our French list, against #45,472 for "bias". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "biais" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "bias" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #171,242 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "biais" and "bias" also get mixed up with nearby pairs, the highest-scored neighbour is "bias vs bihan". 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 #171,242 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