Which to use
“fault” is a verb and “full” is an adjective - they look or sound alike but fill different roles in a sentence.
- #46,753
- “fault” frequency rank
- #7,698
- “full” frequency rank
- 54451
- confusion score
Side-by-Side Comparison
| Feature | fault | full |
|---|---|---|
| Definition | Deuxième personne du pluriel de l’impératif présent de faulen. | Plein. |
Where the eye mixes fault and full
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.
Visual trap between fault and full
These two trip readers on the page rather than in the ear: fault is \faʊ̯lt\ while full is \ful\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (verb vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 54451, derived from the frequency rank of both members and their visual similarity.
fault is recorded at frequency rank #46,753, classified as averb, pronounced \faʊ̯lt\. full is at rank #7,698, tagged as anadj, pronounced \ful\.
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 54451, this pair ranks #133,974 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of fault vs full
Shared letters: flu. Private to "fault": at. Private to "full": -.
"fault" · 5 letters · shape CVVCC · "full" · 4 letters · shape CVCC
Known mistypes of this pair
Frequently Asked Questions
Do "fault" and "full" mean the same thing in a sentence?
Frequency check: "fault" vs "full" - which ranks higher?
What to do next
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "fault" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "full" - compare definitions side by side with the headword page. Word entry
- This pair ranks #133,974 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "fault" and "full" also get mixed up with nearby pairs, the highest-scored neighbour is "fau vs fault". 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 #133,974 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.