demi-sœur

\də.mi.sœʁ\

/\də.mi.sœʁ\/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“demi-sœur” is uncommon French (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.

Unranked
below top-frequency French
9
letters

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Sœur n'ayant qu'un parent en commun (père ou mère).

Key facts for demi-sœur
PropertyValue
Headworddemi-sœur
LanguageFrench
Part of speechNoun
IPA\də.mi.sœʁ\
Letters9
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “demi-sœur” sits in French frequency

demi-sœur falls outside the top-100,000 ranked French words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

demi-sœur is uncommon French outside the top frequency list, classed as anoun, transcribed \də.mi.sœʁ\. Rarity is why readers land here mid-draft. Gloss: "Sœur n'ayant qu'un parent en commun (père ou mère).".

We couldn't generate a plausible misspelling set for demi-sœur, which points to an orthography that plays by predictable French rules. Our dataset records no confusable match here, a sign it's visually distinctive enough not to be mixed up with another word.

No explicit etymology string is stored for this entry, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is demi-sœur, spelled D-E-M-I---S-Œ-U-R.

Definition

  1. 1
    Sœur n'ayant qu'un parent en commun (père ou mère).

Antonyms

sœur germaine

This word in other languages

half sister(English)Halbschwester(Deutsch)

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "demi-sœur"?
"demi-sœur" is spelled D-E-M-I---S-Œ-U-R. The IPA pronunciation is \də.mi.sœʁ\.
What does "demi-sœur" mean?
As a noun, "demi-sœur" means: Sœur n'ayant qu'un parent en commun (père ou mère).
How do you pronounce "demi-sœur"?
The IPA (International Phonetic Alphabet) transcription for "demi-sœur" is \də.mi.sœʁ\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "demi-sœur" come from?
"demi-sœur" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “demi-sœur”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct French spelling is D-E-M-I---S-Œ-U-R - every other letter order is a misspelling in standard orthography.
  • Say it as \də.mi.sœʁ\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Browse more French words and confusable pairs in the same reference. French words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list