a brother or sister.
Anthropology. a comember of a sib, a unilateral descent group thought to share kinship through a common ancestor.
of or relating to a brother or sister: sibling rivalry.
- half-sibling, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use sibling in a sentence
Two additional groups experienced daily separation from mother and siblings, plus an injection as an additional stressor.Puberty can repair the brain’s stress responses after hardship early in life | Esther Landhuis | August 28, 2020 | Science News
Two more groups experienced daily separation from both their mother and siblings.A bit of stress may help young people build resilience | Esther Landhuis | August 27, 2020 | Science News For Students
He also finally had a way to keep in touch with his siblings and reconnect with old friends.The human cost of a WeChat ban: severing a hundred million ties | Karen Hao | August 13, 2020 | MIT Technology Review
The outer one weighs six times Jupiter’s mass and orbits at twice its sibling’s distance.This is the first picture of a sunlike star with multiple exoplanets | Lisa Grossman | July 22, 2020 | Science News
Ducouret says that this food-sharing behavior could have evolved because the elder siblings enjoy both indirect and direct benefits.Barn owlets share food with their younger siblings in exchange for grooming | Pratik Pawar | June 16, 2020 | Science News
Her adopted daughter tried to suffocate a younger biological sibling.
After losing her father and young sibling to Ebola, 6-year-old Liberian Miatta Urey is a symbol of hope in the midst of tragedy.‘Her Survival Was a Miracle’: The 6-Year-Old Who Beat Ebola | Wade C.L. Williams | October 23, 2014 | THE DAILY BEAST
My father lost his last surviving sibling, my Aunt Sally, in 2007.Tom Sizemore’s Revenge: On Tom Cruise’s Scientology Recruitment, Drugs, and Craving a Comeback | Marlow Stern | September 26, 2014 | THE DAILY BEAST
Wendy Kramer is co-founder, with her donor-conceived son Ryan, of the Donor sibling Registry (DSR).
“Go on then,” she said, as if humoring a grating younger sibling.
We saw on our left the large monastery of Delaling, and, a little way off, the Gomba of sibling.An Explorer's Adventures in Tibet | A. Henry Savage Landor
The extended family groupings in terms of matrilocal residence or centered around a sibling group are amorphous but flexible.Shoshone-Bannock Subsistence and Society | Robert F. Murphy
British Dictionary definitions for sibling
a person's brother or sister
(as modifier): sibling rivalry
any fellow member of a sib
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