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See also: Sister



Alternative formsEdit


From Middle English sister, suster, partly from Old Norse systir (sister) and partly from Old English swustor, sweoster, sweostor (sister, nun); both from Proto-Germanic *swestēr (sister), from Proto-Indo-European *swésōr (sister). Cognate with Scots sister, syster (sister), West Frisian sus, suster (sister), Dutch zuster (sister), German Schwester (sister), Norwegian Bokmål søster (sister), Norwegian Nynorsk and Swedish syster (sister), Icelandic systir (sister), Gothic 𐍃𐍅𐌴𐍃𐍄𐌰𐍂 (swēstar, sister), Latin soror (sister), Russian сестра́ (sestrá, sister), Lithuanian sesuo (sister), Albanian vajzë (girl, maiden), Sanskrit स्वसृ (svásṛ, sister), Persian خواهر (xâhar, sister).



sister (plural sisters or sistren)

  1. A daughter of the same parents as another person; a female sibling.
    My sister is always driving me crazy.
  2. A female member of a religious community; a nun.
    Michelle left behind her bank job and became a sister at the local convent.
  3. (Britain) A senior or supervisory nurse, often in a hospital.
  4. Any woman or girl with whom a bond is felt through common membership of a race, profession, religion or organization, such as feminism.
    Connie was very close to her friend Judy and considered her to be her sister.
  5. (slang) A black woman.
  6. (informal) A form of address to a woman.
    • What’s up, sister?
  7. A woman, in certain labour or socialist circles; also as a form of address.
    • Thank you, sister. I would like to thank the sister who just spoke.
  8. (attributively) An entity that has a special or affectionate, non-hierarchical relationship with another.
    sister publication, sister city, sister projects
  9. (usually attributively) In the same class.
    sister ships, sister facility




  • (daughter of common parents): sibling

Derived termsEdit

Related termsEdit


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.


sister (third-person singular simple present sisters, present participle sistering, simple past and past participle sistered)

  1. (transitive, construction) To strengthen (a supporting beam) by fastening a second beam alongside it.
    I’m trying to correct my sagging floor by sistering the joists.
  2. (obsolete, transitive) To be sister to; to resemble closely.
    (Can we find and add a quotation of Shakespeare to this entry?)


Further readingEdit


Most common English words before 1923 in Project Gutenberg: usual · entirely · system · #726: sister · occasion · enemy · perfect





sister (plural sisters)

  1. sister

Derived termsEdit