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 brand also announced its partnership with Grammy award-winning artists and siblings Billie Eilish and Finneas O’Connell to commemorate the occasion. —Fairchild Studio, Footwear News, 14 Nov. 2025

Amid her treatment, Melody has enjoyed spending time with her four older siblings — Felicity, 2, Liberty, 6, and 10-year-old twins Tom and Iz — who regularly visit her at Great Ormond Street Hospital. —Becca Longmire, PEOPLE, 14 Nov. 2025

As with its older siblings, the low-step aluminum main frame is connected to a tilting mechanism that keeps cargo steady while allowing for a more natural riding experience, particularly when cornering. —New Atlas, 14 Nov. 2025

Preferred co-buyers among respondents include a friend, sibling, parent, and extended family. —Sydney Lake, Fortune, 14 Nov. 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