variablevsviableWhich spelling fits?

Which to use

“variable” and “viable” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#5,086
“variable” frequency rank
#14,820
“viable” frequency rank
19906
confusion score

Side-by-Side Comparison

Feature variable viable
Definition Qui est susceptible de changer, de varier, d’évoluer. Qui est apte à vivre.

Where the eye mixes variable and viable

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

8 ch
variable
6 ch
viable

Visual trap between variable and viable

A purely visual mix-up. variable (\va.ʁjabl\) and viable (\vjabl\) 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 2 letter(s) in length. Our composite confusion score for this pair is 19906, derived from the frequency rank of both members and their visual similarity.

variable is recorded at frequency rank #5,086, classified as anadj, pronounced \va.ʁjabl\. viable is at rank #14,820, tagged as anadj, pronounced \vjabl\.

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 19906, this pair ranks #370,926 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of variable vs viable

Shared letters: abeilv. Private to "variable": r. Private to "viable": -.

"variable" · 8 letters · shape CVCVVCCV  ·  "viable" · 6 letters · shape CVVCCV

Known mistypes of this pair

  • variableavriable · vairable · varaible · variabble · variabel · variablle · varialbe · varibale
  • viableivable · vaible · viabble · viabel · viablle · vialbe · vibale · vviable

Frequently Asked Questions

Can "variable" and "viable" be used interchangeably?
No. They are said differently (\va.ʁjabl\ versus \vjabl\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "variable" or "viable"?
"variable" is the more common of the two: it sits at frequency rank #5,086 in our French list, against #14,820 for "viable". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "variable" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "viable" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #370,926 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "variable" and "viable" also get mixed up with nearby pairs, the highest-scored neighbour is "viable vs vial". 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 #370,926 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list