Which to use
“sept” is an adjective and “sup” is an intj - they look or sound alike but fill different roles in a sentence.
- #831
- “sept” frequency rank
- #10,952
- “sup” frequency rank
- 11783
- confusion score
Side-by-Side Comparison
| Feature | sept | sup |
|---|---|---|
| Definition | Six plus un, adjectif numéral cardinal correspondant au nombre 7. | Super |
Where the eye mixes sept and sup
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses sept with sup
These two trip readers on the page rather than in the ear: sept is \sɛt\ while sup is \syp\. 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 (adjective vs intj), which is usually the fastest check. Our composite confusion score for this pair is 11783, derived from the frequency rank of both members and their visual similarity.
sept is recorded at frequency rank #831, classified as anadj, pronounced \sɛt\. sup is at rank #10,952, tagged as anintj, pronounced \syp\.
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 11783, this pair ranks #407,833 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.
Orthographic DNA of sept vs sup
Shared letters: ps. Private to "sept": et. Private to "sup": u.
"sept" · 4 letters · shape CVCC · "sup" · 3 letters · shape CVC
Known mistypes of this pair
- sept ← espt · seppt · septt · setp · spet · ssept
Frequently Asked Questions
Can "sept" and "sup" be used interchangeably?
Which is more common, "sept" or "sup"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "sept" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "sup" - compare definitions side by side with the headword page. Word entry
- This pair ranks #407,833 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "sept" and "sup" also get mixed up with nearby pairs, the highest-scored neighbour is "sup vs suu". 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 #407,833 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.