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 case traces back to a March 2023 welfare check conducted at an Everman, Texas, home where police arrived to inquire about Noel and his six siblings after family members expressed concerns over their well-being, authorities said at the time. —Samira Asma-Sadeque, People.com, 21 Aug. 2025

Vanderbilt now runs the third busiest transplant center in the U.S. Some friends are surprised to see a gleeful and energetic 4-year-old Jeremiah James Halliburton chasing after his older siblings on his family's Smith County farm. —Beth Warren, The Tennessean, 21 Aug. 2025

The sibling trio released Greetings from Your Hometown in early August, and this frame, the set launches on several tallies. —Hugh McIntyre, Forbes.com, 20 Aug. 2025

Wilbur first came to Dallas Dog, a rescue, rehab and reform organization, in August 2024 with his sibling, Orville. —Liz O'Connell, MSNBC Newsweek, 20 Aug. 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