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sib

[sib]
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adjective
  1. related by blood; akin.
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noun
  1. a kinsman; relative.
  2. one's kin or kindred.
  3. Anthropology. a unilateral descent group.
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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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sib

Historical Examples

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

    Two Penniless Princesses

    Charlotte M. Yonge

  • He had had letters from him that told how they were sib and rib.

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

    The Proverbs of Scotland

    Alexander Hislop

  • If you can't find a pet name for me you may call me Sibylla, or Sibyl, or just Sib.

    The Tigress

    Anne Warner

  • The earth is drunk with sweetness, and I see now how great joy is sib to great pain!

    Foes

    Mary Johnston


British Dictionary definitions for sib

sib

noun
  1. a blood relative
  2. a brother or sister; sibling
  3. kinsmen collectively; kindred
  4. any social unit that is bonded by kinship through one line of descent only
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Word Origin

Old English sibb; related to Old Norse sifjar relatives, Old High German sippa kinship, Latin suus one's own; see gossip

SIB

abbreviation for (in Britain)
  1. (the former) Securities and Investments Board
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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

Word Origin and History for sib

n.

short for sibling, attested from 1957.

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Online Etymology Dictionary, © 2010 Douglas Harper

sib in Medicine

sib

(sĭb)
n.
  1. A blood relation; a relative.
  2. A person's relatives when considered as a group; kinfolk.
  3. A brother or sister; a sibling.
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adj.
  1. Related by blood; kindred.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.