sibling

noun

sib·​ling ˈsi-bliŋ 

1

: sib sense 2

also : one of two or more individuals having one common parent

2

: one of two or more things related by a common tie or characteristic

the sedan's smaller sibling

Examples of sibling in a Sentence

Recent Examples on the Web

Justine Lupe and Timothy Simons will reprise their roles as the leads' siblings Morgan and Sasha, respectively. —Emily Blackwood, People.com, 22 Feb. 2025

Another move and two more siblings later, I was finally upgraded to a full-sized bedroom to call my own in our family’s forever home, but by then my love for a cozy nook and twin bed was cemented. —Cameron Beall, Southern Living, 22 Feb. 2025

Near the end of the war, as the Allies pushed the Nazis back toward Berlin, Weidel’s father, then around 6, had to flee his home region of Upper Silesia with his mother and siblings. —Simon Shuster/berlin, TIME, 22 Feb. 2025

Mercedes-Benz’s most beloved SUV is about to get a little sibling. —Bryan Hood, Robb Report, 21 Feb. 2025

Word History

First Known Use

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

Phrases Containing sibling

• sibling rivalry
• sibling species

Kids Definition

sibling

noun

sib·​ling ˈsib-liŋ 

: one of two or more individuals having the same parents or sometimes only one parent in common

Medical Definition

sibling

noun

sib·​ling ˈsib-liŋ 

: sib

also : one of two or more individuals having one common parent