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[sib] /sɪb/
related by blood; akin.
a kinsman; relative.
one's kin or kindred.
Anthropology. a unilateral descent group.
Origin of sib
before 900; Middle English sib(e), sibb(e), Old English sib(b) (orig. adj.); cognate with Old Norse sifjar (plural) relatives, Old Frisian sib (adj.), sibba (noun), Middle Dutch sibbe (noun and adj.), German Sippe kin; cf. gossip Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for sib
Historical Examples
  • You are a nice little thing, you know, sib, although at present you are very unimportant.

    Betty Vivian L. T. Meade
  • He had had letters from him that told how they were sib and rib.

    The Fifth Queen Crowned Ford Madox Ford
  • The earth is drunk with sweetness, and I see now how great joy is sib to great pain!

    Foes Mary Johnston
  • Ye're ower het and ower fu', sib to some o' the laird's tenants.

    The Proverbs of Scotland Alexander Hislop
  • His forbeers were but strangers, with your leave; and though I say it, I'm sib to the best gentles in the land.

    Discipline Mary Brunton
  • Madame, is he sib to him that aided in the slaughter of Eastern's Eve night?'

    Two Penniless Princesses Charlotte M. Yonge
  • Now Thor's wife was named sib, and she was most beautiful to look upon.

  • If you can't find a pet name for me you may call me sibylla, or sibyl, or just sib.

    The Tigress Anne Warner
  • Ye ken his mother was sib to mine by the fathers side, and bloods thicker than water ony day.

    The Entail John Galt
  • No, sib,” he said, “you must go back to your mother; it would not be at all right to leave your mother alone.

    Daddy's Girl L. T. Meade
British Dictionary definitions for sib


a blood relative
a brother or sister; sibling
kinsmen collectively; kindred
any social unit that is bonded by kinship through one line of descent only
Word Origin
Old English sibb; related to Old Norse sifjar relatives, Old High German sippa kinship, Latin suus one's own; see gossip


abbreviation (in Britain)
(the former) Securities and Investments Board
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for sib

short for sibling, attested from 1957.

Online Etymology Dictionary, © 2010 Douglas Harper
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sib in Medicine

sib (sĭb)

  1. A blood relation; a relative.

  2. A person's relatives when considered as a group; kinfolk.

  3. A brother or sister; a sibling.

Related by blood; kindred.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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