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

When photographer Phan Quang took this portrait of the siblings in 2014, the family spanned four generations – including a great-grandchild seated on the woman’s lap. — Jacqui Palumbo, CNN Money, 14 July 2026

Despite support from her husband, parents, siblings and cousins — and an argument from her own attorney — the Idaho mother accused of killing her 18-month-old twins won’t be able to post bond. — Alex Brizee, Idaho Statesman, 14 July 2026

Friends, siblings and even parents stand before a crowd of more than 100 people to explain why their favorite person deserves a chance at connection. — Kansas City Star, 13 July 2026

Amid reports of a distant relationship with his older half-siblings, new claims have emerged about the First Son’s upbringing. — Allison Degrushe, StyleCaster, 13 July 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