[ sib ]
/ sɪb /


related by blood; akin.


a kinsman; relative.
one's kin or kindred.
Anthropology. a unilateral descent group.

Nearby words

  1. siamese twins,
  2. sian,
  3. siang,
  4. siangtan,
  5. siauliai,
  6. sibelius,
  7. sibelius, jean julius christian,
  8. siberia,
  9. siberian,
  10. siberian crab apple

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 Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sib

British Dictionary definitions for sib


/ (sɪb) /


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 for sib

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


abbreviation for (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

Word Origin and History for sib



short for sibling, attested from 1957.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for sib


[ sĭb ]


A blood relation; a relative.
A person's relatives when considered as a group; kinfolk.
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.