half brother
One parent shared
A half brother is a brother who shares one biological parent with you but not both—same mother but different fathers, or same father but different mothers.
The term distinguishes from full siblings while acknowledging the sibling relationship: My half brother and I have the same dad but different moms.
Also spelled half-brother.
Brother or sister
- consanguinityRelatedness through shared ancestry
- paternityMale parent status
- maternityState of being pregnant
- bloodlineAncestry through generations
lineage · heredity · genes · genetics · DNA · biological · ancestry · descendant
Household joined by remarriage
- stepsisterSibling through remarriage
- stepmotherFather's spouse, not birth mother
- stepfatherMother's subsequent husband
- stepchildSpouse's prior offspring
remarriage · co-parenting · custody · visitation · divorce · second marriage · household dynamics · adjustment period
sibling
Brother or sister
- consanguinityRelatedness through shared ancestry
- paternityMale parent status
- maternityState of being pregnant
bloodline · lineage · heredity · genes · genetics · DNA · biological · ancestry · descendant · offspring
stepfamily
Household joined by remarriage
- stepsisterSibling through remarriage
- stepmotherFather's spouse, not birth mother
- stepfatherMother's subsequent husband
stepchild · remarriage · co-parenting · custody · visitation · divorce · second marriage · household dynamics · adjustment period · family therapy
- open compoundsice cream, hot dog, high school, post office, living room
- Islamic Inheritanceheirs, estate division, legal heirs, paternal uncle, female heir
half brotherbrother
Male with shared parents
full sibling · twin brother · blood brother · identical twin
half brotherstepbrother
Son of a step-parent
foster brother · adopted brother · stepsibling · step-sibling · adopted sibling
half, brother, brothers, brotherly, halves, brotherhood, stepbrother, half-brother, stepbrothers