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

Though the majority of the Bridgerton siblings are squared away, Benedict remains unaccounted for. —Aramide Tinubu, Variety, 29 Jan. 2026

Go visit a sibling, or start a local book club. —Steph Koyfman, Condé Nast Traveler, 29 Jan. 2026

For four seasons, Bridgerton has portrayed Eloise as a spinster who, unlike her siblings, may never marry or find the love of her life. —Jason Pham, StyleCaster, 29 Jan. 2026

Here, Jessie stars as Eloise, the fifth Bridgerton sibling and Penelope's closest friend. —Allison Degrushe, Entertainment Weekly, 29 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