bailsvsbasisTell them apart

Which to use

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

#49,199
“bails” frequency rank
#1,626
“basis” frequency rank
50825
confusion score

Side-by-Side Comparison

Feature bails basis
Definition plural of bail A physical base or foundation.

Where the eye mixes bails and basis

Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. bails (CVVCC) and basis (CVCVC) run the same length but a different consonant-vowel pattern - the shape difference is usually the fastest tell.

5 ch
bails
5 ch
basis

Visual trap between bails and basis

A purely visual mix-up. bails (/beɪlz/) and basis (/ˈbeɪ.sɪs/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 50825, derived from the frequency rank of both members and their visual similarity.

bails is recorded at frequency rank #49,199, classified as anoun, pronounced /beɪlz/. basis is at rank #1,626, tagged as anoun, pronounced /ˈbeɪ.sɪs/.

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 50825, this pair ranks #170,814 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of bails vs basis

Shared letters: abis. Private to "bails": l. Private to "basis": -.

"bails" · 5 letters · shape CVVCC  ·  "basis" · 5 letters · shape CVCVC

Known mistypes of this pair

  • bails ← abils · baills · bailss · balis · bbails · bials
  • basis ← absis · baiss · basiss · bassi · bassis · bbasis · bsais

Frequently Asked Questions

Do "bails" and "basis" mean the same thing in a sentence?
No. They are said differently (/beɪlz/ versus /ˈbeɪ.sɪs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "bails" or "basis"?
"basis" is the more common of the two: it sits at frequency rank #1,626 in our English list, against #49,199 for "bails". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

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

  • Full dictionary entry for "bails" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "basis" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #170,814 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "bails" and "basis" also get mixed up with nearby pairs, the highest-scored neighbour is "bails vs BRICS". 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 #170,814 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