bias vs bis, What's the Difference?

Which to use

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

#42,337
“bias” frequency rank: #14,300
“bis” frequency rank: 56637
confusion score

Side-by-Side Comparison

Feature	bias	bis
Definition	tendência ou distorção do julgamento de um observador por estar ele envolvido com o objeto de observação	até

Where the spellings diverge

Shared letters are muted; the letters that actually set bias and bis apart are highlighted. They share 3 letters in sequence, which is exactly why the eye skips the difference.

4 ch

bias

3 ch

bis

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: bias is anoun and bisapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 56637, derived from the frequency rank of both members and their visual similarity.

bias is recorded at frequency rank #42,337, classified as anoun, pronounced /ˈbi.ɐs/. bis is at rank #14,300, tagged as aprep.

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 56637, this pair ranks #9,840 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of bias vs bis

Shared letters: bis. Private to "bias": a. Private to "bis": -.

"bias" · 4 letters · shape CVVC · "bis" · 3 letters · shape CVC

Known mistypes of this pair

bias ← bais · bbias · biass · bisa · ibas

Frequency comparison

bias#42,337

bis#14,300

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "bias" and "bis" be used interchangeably?

No - they are not even the same part of speech. "bias" is a noun and "bis" a preposition, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "bias" or "bis"?

"bis" is the more common of the two: it sits at frequency rank #14,300 in our Portuguese list, against #42,337 for "bias". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering bias vs bis

The fastest way to pick the right one every time.

Check the role first: if you need a noun, it's “bias”; for a preposition, it's “bis”.
See each word in full, definition, IPA, etymology and its other confusables. Full “bias” entry
Browse more pairs most likely to be confused. Most confusable