WWordGenerator.org GeneratorsWord ListsBlogAboutGenerate a word Home / S / sibling sibling noun 7 letters Scrabble 10 WWF 14 Definitions noun a person's brother or sister sib Look “sibling” up elsewhere Wiktionary ↗ Merriam-Webster ↗ Etymonline ↗ Dictionary.com ↗ Want another word?Spin the dictionary for a fresh one. Generate a word →