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

The youngest of three sisters alongside siblings Megan and Katie, Sara hadn’t given much thought to the significance of her name until a friend pointed it out, for comedic effect, of course. —Jack Beresford, MSNBC Newsweek, 5 Dec. 2025

The Kendall siblings are disappointed with Germany’s placement in its group but still believe the team can come out on top. —Miami Herald, 5 Dec. 2025

But for now, William and Kate are doing their best to keep him and his siblings out of the public eye for the majority of their young lives. —Meredith Kile, PEOPLE, 5 Dec. 2025

Kepner died on the Carnival Horizon in November while on a Caribbean vacation with her grandparents, father, stepmother, siblings and stepsiblings. —Doug Lantz, ABC News, 5 Dec. 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