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

Also with Phoenix at the club were his siblings Joaquin and Rain Phoenix and his girlfriend Samantha Mathis. —Lynsey Eidell, PEOPLE, 31 Oct. 2025

In addition to the Astrof siblings, executive producers include Dana Honor, Monica Aldama and Jeff Blitz, who also directs. —Rosy Cordero, Deadline, 31 Oct. 2025

It is also understood that the King took action in light of his sibling’s serious lapses of judgment and has the support of the wider family, including Prince William. —Max Foster, CNN Money, 31 Oct. 2025

The siblings also became regulars at the gallery of Ambroise Vollard, purchasing impressionist works by Claude Monet and Edgar Degas as well as more innovative ones by Paul Gauguin and Vincent van Gogh. —Daphne Merkin, The Atlantic, 31 Oct. 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