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
Skyler Caruso, Peoplemag, 5 Apr. 2024
Even a nominal contribution is a show of good faith, much more so than resigning yourself to helplessness beyond telling your sib what to do.
—Carolyn Hax, Washington Post, 19 Sep. 2023
Despite their parent's separation, the Cyrus sibs are tight knit.
—Addison Aloian, Women's Health, 21 Aug. 2023
Here, 10 celebrities who have older and younger sibs.
—Jacorey Moon, Peoplemag, 11 Aug. 2023
See all Example Sentences for sib 
Noun
So, this is an appreciation post for the best sibs in the biz.
—Skyler Caruso, Peoplemag, 5 Apr. 2024
Even a nominal contribution is a show of good faith, much more so than resigning yourself to helplessness beyond telling your sib what to do.
—Carolyn Hax, Washington Post, 19 Sep. 2023
Despite their parent's separation, the Cyrus sibs are tight knit.
—Addison Aloian, Women's Health, 21 Aug. 2023
Here, 10 celebrities who have older and younger sibs.
—Jacorey Moon, Peoplemag, 11 Aug. 2023
See all Example Sentences for sib
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.
Dictionary Entries Near sib
Cite this Entry
“Sib.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sib. Accessed 4 Aug. 2024.
Copy CitationMedical 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
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