bilevsbisTell them apart

Which to use

“bile” and “bis” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#22,009
“bile” frequency rank
#18,497
“bis” frequency rank
40506
confusion score

Side-by-Side Comparison

Feature bile bis
Definition A bitter brownish-yellow or greenish-yellow secretion produced by the liver, stored in the gall bladder, and discharged into the duodenum where it aids the process of digestion. plural of bi

Where the eye mixes bile and bis

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

4 ch
bile
3 ch
bis

Visual trap between bile and bis

A purely visual mix-up. bile (/baɪl/) and bis (/baɪz/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 40506, derived from the frequency rank of both members and their visual similarity.

bile is recorded at frequency rank #22,009, classified as anoun, pronounced /baɪl/. bis is at rank #18,497, tagged as anoun, pronounced /baɪz/.

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 40506, this pair ranks #266,944 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of bile vs bis

Shared letters: bi. Private to "bile": el. Private to "bis": s.

"bile" · 4 letters · shape CVCV  ·  "bis" · 3 letters · shape CVC

Known mistypes of this pair

  • bilebille · blie

Frequently Asked Questions

Can "bile" and "bis" be used interchangeably?
No. They are said differently (/baɪl/ versus /baɪz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "bile" or "bis"?
"bis" is the more common of the two: it sits at frequency rank #18,497 in our English list, against #22,009 for "bile". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "bile" 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 #266,944 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "bile" and "bis" also get mixed up with nearby pairs, the highest-scored neighbour is "bails vs bile". 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 #266,944 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list