sister

play
noun sis·ter \ˈsis-tər\

Definition of sister

  1. 1 :  a female who has one or both parents in common with another

  2. 2 often capitalized a :  a member of a women's religious order (as of nuns or deaconesses); especially :  one of a Roman Catholic congregation under simple vowsb :  a girl or woman who is a member of a Christian church

  3. 3a :  a girl or woman regarded as a comradeb :  a girl or woman who shares with another a common national or racial origin; especially :  a black girl or woman

  4. 4 :  one that is closely similar to or associated with another sister cities

  5. 5 chiefly British :  nurse

  6. 6a :  girl, womanb :  person —usually used in the phrase weak sister

  7. 7 :  a member of a sorority

Examples of sister in a sentence

  1. The sisters live in the convent.

Origin and Etymology of sister

Middle English suster, sister, partly from Old English sweostor and partly from Old Norse systir sister; akin to Latin soror sister, Sanskrit svasṛ


First Known Use: before 12th century



SISTER Defined for English Language Learners

sister

play
noun sis·ter \ˈsis-tər\

Definition of sister for English Language Learners

  • : a girl or woman who has one or both of the same parents as you

  • —used when talking to a woman

  • : a member of a religious community of women


SISTER Defined for Kids

sister

play
noun sis·ter \ˈsi-stər\

Definition of sister for Students

  1. 1 :  a female person or animal related to another person or animal by having one or both parents in common

  2. 2 :  a member of a religious society of women :  nun

  3. 3 :  a woman related to another by a common tie or interest

sisterly

adjective

Medical Dictionary

sister

play
noun sis·ter \ˈsis-tər\

Medical Definition of sister

  1. chiefly British :  a head nurse in a hospital ward or clinic; broadly :  nurse



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