septvssetWhich spelling fits?

Quick tell: sept is a adjective, set is a noun, so they fill different roles in a sentence.

Which to use

“sept” is an adjective and “set” is a noun - they look or sound alike but fill different roles in a sentence.

#831
“sept” frequency rank
#6,758
“set” frequency rank
7589
confusion score

Side-by-Side Comparison

Feature sept set
Definition Six plus un, adjectif numéral cardinal correspondant au nombre 7. Ensemble, trousse, équipement, assortiment.

Same sound, different letters: sept vs set

Muted letters are shared; highlighted letters are the only spelling cue when pronunciation matches. Shared run: 3 letters.

4 ch
sept
3 ch
set

Homophone desk: sept vs set

Say them out loud and nothing separates them: sept and set carry the same recorded pronunciation, \sɛt\. Grammar is what tells them apart: one is anadjective, the other anoun, so most sentences will only accept one of them. They differ by 1 letter(s) in length. Our composite confusion score for this pair is 7589, derived from the frequency rank of both members and their visual similarity.

sept is recorded at frequency rank #831, classified as anadj, pronounced \sɛt\. set is at rank #6,758, tagged as anoun, pronounced \sɛt\.

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 7589, this pair ranks #422,717 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of sept vs set

Shared letters: est. Private to "sept": p. Private to "set": -.

"sept" · 4 letters · shape CVCC  ·  "set" · 3 letters · shape CVC

Known mistypes of this pair

  • septespt · seppt · septt · setp · spet · ssept

Frequently Asked Questions

Can "sept" and "set" be used interchangeably?
No - they are not even the same part of speech. "sept" is an adjective and "set" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "sept" or "set"?
"sept" is the more common of the two: it sits at frequency rank #831 in our French list, against #6,758 for "set". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

You've separated the homophone pair "sept" / "set". Follow the links when you need the full entry or a neighbour that trips the same ear.

  • Full dictionary entry for "sept" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "set" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #422,717 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "sept" and "set" also get mixed up with nearby pairs, the highest-scored neighbour is "set 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 #422,717 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