sib

1 of 2

adjective

: related by blood : akin

sib

2 of 2

noun

1
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

Example Sentences

Recent Examples on the Web
Noun
The oldest Webster sib is seen hanging with her grandmomager, Kris Jenner, as well as her Auntie Khloé as the women travel via private jet to New York 36 hours before the Most Important Monday in May. Sam Reed, Glamour, 5 May 2022 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 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sib.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

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

First Known Use

Adjective

before the 12th century, in the meaning defined above

Noun

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

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

Dictionary Entries Near sib

Cite this Entry

“Sib.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sib. Accessed 31 Mar. 2023.

Medical Definition

sib

noun
: 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

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