Home › Words › B › biosiblingbiosiblingbiosibling means A biological sibling.EtymologyFrom bio- + sibling.nounA biological sibling.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.biosib 85% match — A biological sibling. vs biosibling →dibling 69% match — A donor-conceived sibling; an individual who is biologically connected through donated sperm or eggs. vs biosibling →biochild 67% match — A biological child. vs biosibling →intersibling 66% match — Between siblings. vs biosibling →biofamily 65% match — Biological family. vs biosibling →biokid 63% match — A biological child. vs biosibling →bioson 61% match — A biological son. vs biosibling →birthfamily 60% match — Biological family. vs biosibling →