BIOS vs bis, What's the Difference?

Which to use

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

#33,296
“BIOS” frequency rank: #14,300
“bis” frequency rank: 47596
confusion score

Side-by-Side Comparison

Feature	BIOS	bis
Definition	Sigla de Basic Input/Output System	até

Letter map: BIOS vs bis

Shared letters muted; letters that set BIOS and bis apart highlighted. Shared run: 3.

4 ch

BIOS

3 ch

bis

Part-of-speech tell for BIOS / bis

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: BIOS is anabbrev and bisapreposition. On the page they differ by 1 letter(s) in length. Our composite confusion score for this pair is 47596, derived from the frequency rank of both members and their visual similarity.

BIOS is recorded at frequency rank #33,296, classified as anabbrev. 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 47596, this pair ranks #17,641 of 75,631 scored Portuguese confusable pairs - among the most confusable pairs.

Orthographic DNA of BIOS vs bis

Shared letters: bis. Private to "BIOS": o. Private to "bis": -.

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

Known mistypes of this pair

BIOS ← bbios · bioss · biso · bois · ibos

Frequently Asked Questions

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

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

In ordinary Portuguese text, does "BIOS" or "bis" show up more?

"bis" is the more common of the two: it sits at frequency rank #14,300 in our Portuguese list, against #33,296 for "BIOS". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "BIOS" vs "bis" is on the table, pick a follow-up below.

Full dictionary entry for "BIOS" with definition, IPA, and generated misspellings. Word entry
Full dictionary entry for "bis" - compare definitions side by side with the headword page. Word entry
This pair ranks #17,641 of 75,631 scored Portuguese confusable pairs in this corpus vintage. Corpus statistics
"BIOS" and "bis" also get mixed up with nearby pairs, the highest-scored neighbour is "bile vs BIOS". 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 #17,641 of 75,631 scored Portuguese pairs, corpus vintage 2026-09-03, not spelling advice.