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

Hall of Fame siblings Cheryl Miller (USC) and Reggie Miller (UCLA) sat courtside in their respective alma mater's jerseys. —CBS News, 4 Jan. 2026

But that hasn’t materialized into a meeting between the siblings, despite reports that both the King and Kate Middleton were pushing for it. —Lizzie Lanuza, StyleCaster, 3 Jan. 2026

The siblings were visiting as part of their allotted five days of visitation for the year, Smith previously said, according to NBC News. —Angel Saunders, PEOPLE, 3 Jan. 2026

The friend was chatting with chef-owner Yoshiyuki Inoue about the expanding warren of restaurants on this subterranean level of the Kajima Building, which already housed Sushi Kaneyoshi and its more casual sibling, Bar Sawa. —Bill Addison, Los Angeles Times, 2 Jan. 2026

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