sib

adjective
\ ˈsib How to pronounce sib (audio) \

Definition of sib

 (Entry 1 of 2)

: related by blood : akin

sib

noun

Definition of sib (Entry 2 of 2)

b : a blood relation : kinsman
2 : a brother or sister considered irrespective of sex broadly : any plant or animal of a group sharing a degree of genetic relationship corresponding to that of human sibs
3 : a group of persons unilaterally descended from a real or supposed ancestor

Examples of sib in a Sentence

Recent Examples on the Web: Noun But the sib just wants to avoid blowing this up and complicating things for the sister. Carolyn Hax, The Mercury News, 1 Aug. 2019 But the sib just wants to avoid blowing this up and complicating things for the sister. Carolyn Hax, The Mercury News, 1 Aug. 2019 But the sib just wants to avoid blowing this up and complicating things for the sister. Carolyn Hax, The Mercury News, 1 Aug. 2019 But the sib just wants to avoid blowing this up and complicating things for the sister. Carolyn Hax, The Mercury News, 1 Aug. 2019 But the sib just wants to avoid blowing this up and complicating things for the sister. Carolyn Hax, The Mercury News, 1 Aug. 2019 But the sib just wants to avoid blowing this up and complicating things for the sister. Carolyn Hax, oregonlive.com, 31 July 2019 A few months later, her famous sib Kim Kardashian stepped out in what was basically a transparent shift dress sandwiched between a jacket and briefs. Krystin Arneson, Glamour, 12 May 2018 Tara, who works for Akshi, is constantly anxious about her street-wise sib, leading to some serious shouting matches between the two. Deborah Young, The Hollywood Reporter, 22 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sib.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of sib

Adjective

before the 12th century, in the meaning defined above

Noun

before the 12th century, in the meaning defined at sense 1a

History and Etymology for sib

Adjective

Middle English, from Old English sibb, from sibb kinship; akin to Old High German sippa kinship, family, Latin sodalis comrade, Greek ēthos custom, character, Latin suus one's own — more at suicide

Keep scrolling for more

Learn More About sib

Time Traveler for sib

Time Traveler

The first known use of sib was before the 12th century

See more words from the same century

Dictionary Entries Near sib

sias

sib

Sibbald's rorqual

See More Nearby Entries 

Statistics for sib

Cite this Entry

“Sib.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sib. Accessed 26 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for sib

sib

noun
\ ˈsib How to pronounce sib (audio) \

Medical Definition of sib

: a brother or sister considered irrespective of sex broadly : any plant or animal of a group sharing a degree of genetic relationship corresponding to that of human sibs

More from Merriam-Webster on sib

Britannica.com: Encyclopedia article about sib

WORD OF THE DAY

Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!