potablevsprobableWhich spelling fits?

Which to use

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

#35,887
“potable” frequency rank
#9,799
“probable” frequency rank
45686
confusion score

Side-by-Side Comparison

Feature potable probable
Definition Good for drinking without fear of waterborne disease or poisoning. Likely or most likely to be true.

Where the eye mixes potable and probable

Muted = shared; highlighted = the visual trap. They share 6 letters in sequence.

7 ch
potable
8 ch
probable

Visual trap between potable and probable

A purely visual mix-up. potable (/ˈpəʊtəbəl/) and probable (/ˈpɹɒbəbl̩/) 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 45686, derived from the frequency rank of both members and their visual similarity.

potable is recorded at frequency rank #35,887, classified as anadj, pronounced /ˈpəʊtəbəl/. probable is at rank #9,799, tagged as anadj, pronounced /ˈpɹɒbəbl̩/.

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 45686, this pair ranks #218,921 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of potable vs probable

Shared letters: abelop. Private to "potable": t. Private to "probable": r.

"potable" · 7 letters · shape CVCVCCV  ·  "probable" · 8 letters · shape CCVCVCCV

Known mistypes of this pair

  • potableoptable · poatble · potabble · potabel · potablle · potalbe · potbale · potible
  • probableporbable · pprobable · prboable · proabble · probabble · probabel · probablle · probalbe

Frequently Asked Questions

Can "potable" and "probable" be used interchangeably?
No. They are said differently (/ˈpəʊtəbəl/ versus /ˈpɹɒbəbl̩/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "potable" or "probable" show up more?
"probable" is the more common of the two: it sits at frequency rank #9,799 in our English list, against #35,887 for "potable". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "potable" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "probable" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #218,921 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "potable" and "probable" also get mixed up with nearby pairs, the highest-scored neighbour is "pliable vs potable". 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 #218,921 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