A sister is a

woman A woman is an adult female human. Prior to adulthood, a female human is referred to as a girl (a female child or adolescent). The plural ''women'' is sometimes used in certain phrases such as "women's rights" to denote female humans regardl ...

or a girl who shares one or more parents with another individual; a female sibling. The male counterpart is a

brother A brother is a man or boy who shares one or more parents with another; a male sibling. The female counterpart is a sister. Although the term typically refers to a familial relationship, it is sometimes used endearingly to refer to non-familia ...

. Although the term typically refers to a familial relationship, it is sometimes used endearingly to refer to non-familial relationships. A full sister is a

first degree relative A first-degree relative (FDR) is a person's parent (father or mother), full sibling (brother or sister) or child. It constitutes a category of family members that largely overlaps with the term nuclear family, but without spouses. If the persons ...

Overview

The English word ''sister'' comes from

Old Norse Old Norse, Old Nordic, or Old Scandinavian, is a stage of development of North Germanic languages, North Germanic dialects before their final divergence into separate Nordic languages. Old Norse was spoken by inhabitants of Scandinavia and t ...

systir which itself derives from Proto-Germanic *swestēr, both of which have the same meaning, i.e. sister. Some studies have found that sisters display more traits indicating jealousy around their siblings than their male counterparts,

s. In some cultures, sisters are afforded a role of being under the protection by male siblings, especially older brothers from issues ranging from bullies or sexual advances by womanizers. In some quarters the term ''sister'' has gradually broadened its colloquial meaning to include individuals stipulating kinship. In response, in order to avoid equivocation, some publishers prefer the usage of ''female sibling'' over ''sister''. Males with a twin sister sometimes view her as their female alter ego, or what they would have been like, if they had two X chromosomes. A study in Perth Australia found that girls having only youngers brothers resulted in a ''chastity effect'', losing their virginity on average more than a year later than average. This has been hypothesized as being attributed to the pheromones in their brothers' sweat and household-related errands.

Sororal relationships

Various studies have shown that older sisters are likely to give a varied gender role to their younger siblings as well as being more likely to develop a close bond with their younger siblings.Gender — Page 53, Leanne Franklin – 2012 Older sisters are more likely to play with their younger siblings. Younger siblings display a more needy behavior when in close proximity to their older sister and are more likely to be tolerant of an older sister's bad behavior. Boys with only an older sister are more likely to display stereotypically male behavior, and such masculine boys increased their masculine behavior with the more sisters they have. The reverse is true for young boys with several sisters, as they tend to be feminine, however, they outgrow this by the time they approach pubescence. Boys with older sisters were less likely to be delinquent or have emotional and behavioral disorders. A younger sister is less likely to be scolded by older siblings than a younger brother. The most common recreational activity between older brother/younger sister pairs is art drawing. Some studies also found a correlation between having an older sister and constructive discussions about safe sexual practices. Some studies have shown that men without sisters are more likely to be ineffectual at courtship and romantic relationships.Leventhal, Gerald S. "Influence of brothers and sisters on sex-role behavior." Journal of Personality and Social Psychology 16.3 (1970): 452.

Fictional works about sisters

Films

* '' What Ever Happened to Baby Jane?'' (1962) * ''

Hannah and Her Sisters ''Hannah and Her Sisters'' is a 1986 American comedy-drama film which tells the intertwined stories of an extended family over two years that begins and ends with a family Thanksgiving dinner. The film was written and directed by Woody Allen, who ...

'' (1986) * ''

Hanging Up ''Hanging Up'' is a 2000 American comedy-drama film about a trio of sisters bonding over their curmudgeonly father with whom none of them were close. It was directed by Diane Keaton, and stars Keaton, Meg Ryan, Lisa Kudrow and Walter Matthau in h ...

'' (2000) * ''

Frozen Frozen may refer to: * the result of freezing * a paralysis response in extreme cases of fear Films * ''Frozen'' (1997 film), a film by Wang Xiaoshuai * ''Frozen'' (2005 film), a film by Juliet McKoen * ''Frozen'' (2007 film), a film by Sh ...

'' (2013) * ''

Little Women ''Little Women'' is a coming-of-age novel written by American novelist Louisa May Alcott (1832–1888). Alcott wrote the book, originally published in two volumes in 1868 and 1869, at the request of her publisher. The story follows the lives ...

'' (2019)

Literature

Laura Lee Hope Laura Lee Hope is a pseudonym used by the Stratemeyer Syndicate for the Bobbsey Twins and several other series of children's novels. Actual writers taking up the pen of Laura Lee Hope include Edward Stratemeyer, Howard and Lilian Garis Lilian C. ...

's Bobbsey Twins novels, which included two sets of

fraternal twins Twins are two offspring produced by the same pregnancy.MedicineNet > Definition of TwinLast Editorial Review: 19 June 2000 Twins can be either ''monozygotic'' ('identical'), meaning that they develop from one zygote, which splits and forms two em ...

: 12-year-old Nan and Bert, and six-year-old Flossie and Freddie *'' In Her Shoes'' (2002), novel *''#Toots'' (2019), novel

Television

*'' Hope & Faith'', American sitcom *'' ''Sisters'' (TV series) *'' What I Like About You'', TV series *'' Sister, Sister'', TV series

Games

*''Jessica & Zofia Blazkowicz '', Wolfenstein: Youngblood * ''Mileena & Kitana'',

Mortal Kombat ''Mortal Kombat'' is an American media franchise centered on a series of video games originally developed by Midway Games in 1992. The development of the first game was originally based on an idea that Ed Boon and John Tobias had of making a v ...

*''

Kat and Ana is a video game series, a spin-off of the ''Mario'' franchise. It comprises various video games created by Nintendo, starring the character Wario. The series began with '' Wario Land: Super Mario Land 3'', the first game to feature Wario as a ...

WarioWare is a video game series, a Spin-off (media), spin-off of the ''Mario (franchise), Mario'' franchise. It comprises various video games created by Nintendo, starring the character Wario. The series began with ''Wario Land: Super Mario Land 3'', th ...

References

External links

* {{Authority control Kinship and descent Terms for women