soirvsssiWhat's the difference?

Quick tell: soir is a noun, ssi is a conjunction, so they fill different roles in a sentence.

Which to use

“soir” is a noun and “ssi” is a conjunction - they look or sound alike but fill different roles in a sentence.

#268
“soir” frequency rank
#42,065
“ssi” frequency rank
42333
confusion score

Side-by-Side Comparison

Feature soir ssi
Definition Déclin du jour, dernières heures de la journée. Abréviation de si et seulement si.

Where the eye mixes soir and ssi

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
soir
3 ch
ssi

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: soir is \swaʁ\ while ssi is \si e sœl.mɑ̃ si\. 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 (noun vs conjunction), which is usually the fastest check. Our composite confusion score for this pair is 42333, derived from the frequency rank of both members and their visual similarity.

soir is recorded at frequency rank #268, classified as anoun, pronounced \swaʁ\. ssi is at rank #42,065, tagged as aconj, pronounced \si e sœl.mɑ̃ si\.

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 42333, this pair ranks #226,402 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of soir vs ssi

Shared letters: is. Private to "soir": or. Private to "ssi": -.

"soir" · 4 letters · shape CVVC  ·  "ssi" · 3 letters · shape CCV

Known mistypes of this pair

  • soirosir · sior · soirr · sori · ssoir

Frequently Asked Questions

Can "soir" and "ssi" be used interchangeably?
No - they are not even the same part of speech. "soir" is a noun and "ssi" a conjunction, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "soir" or "ssi"?
"soir" is the more common of the two: it sits at frequency rank #268 in our French list, against #42,065 for "ssi". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

What to do next

You've compared "soir" and "ssi". Here's where to go from here.

  • Full dictionary entry for "soir" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ssi" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #226,402 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "soir" and "ssi" also get mixed up with nearby pairs, the highest-scored neighbour is "ssi 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

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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

Source: FrequencyWords open word-frequency list