half-siblings
One shared parent
Half-siblings are brothers or sisters who share one biological parent but not both—either the same mother with different fathers, or the same father with different mothers.
The relationship is distinguished from full siblings (who share both parents) and step-siblings (who share no biological parent).
My half-sister and I have the same dad but different moms.
Male with shared parents
- sisterFemale sibling
- motherFemale parent
- fatherMale parent
- biologicalRelating to living organisms
relative · kin · niece · nephew · aunt · uncle · cousin · grandparent
Kinship among men
- sisterhoodBond among women
- bloodlineAncestry through generations
- lineageDescent from progenitors
- clanRelated group sharing ancestry
relatives · kinfolk · family ties · connection · affinity · bond · heritage · descendants
Family line of descent
- heritageInherited cultural legacy
- lineageDescent from progenitors
- descentDownward slope or lineage
- forebearsAncestral family members
ancestors · pedigree · family history · roots · origin · antecedents · predecessors · family tree
Hereditary code molecule
- genesUnits of heredity
- chromosomesGene-bearing nuclear structures
- heredityGenetic trait transmission
- inheritanceProperty received from ancestors
allele · genotype · phenotype · recessive · dominant · genetic testing · paternity · maternity
Father's spouse, not birth mother
- stepfatherMother's subsequent husband
- stepsisterSibling through remarriage
- stepbrotherSon of a step-parent
- stepchildSpouse's prior offspring
remarriage · divorce · co-parenting · household · custody · visitation · family dynamics · adjustment
brother
Male with shared parents
biological · relative · kin · niece · nephew · aunt · uncle · cousin · grandparent · family tree
brotherhood
Kinship among men
- sisterhoodBond among women
- bloodlineAncestry through generations
- lineageDescent from progenitors
clan · relatives · kinfolk · family ties · connection · affinity · bond · heritage · descendants · offspring
ancestry
Family line of descent
forebears · ancestors · pedigree · family history · roots · origin · antecedents · predecessors · family tree · generation
DNA
Hereditary code molecule
- genesUnits of heredity
- chromosomesGene-bearing nuclear structures
- heredityGenetic trait transmission
inheritance · allele · genotype · phenotype · recessive · dominant · genetic testing · paternity · maternity · biological parent
stepmother
Father's spouse, not birth mother
- stepfatherMother's subsequent husband
- stepsisterSibling through remarriage
- stepbrotherSon of a step-parent
stepchild · remarriage · divorce · co-parenting · household · custody · visitation · family dynamics · adjustment · bonding
- familymother, father, parents, parent, son
- family membersmother, father, sister, brother, son
- family termsparents, nuclear family, mothers, extended family, fathers
- relativesmother, father, sister, brother, aunt
- kinshipmother, father, sister, brother, children
- extended householdgrandparents, in-laws, aunts, uncles, cousins
half, sibling, siblings, half-sister, half-brother, sibling rivalry, siblinghood, half-sibling, half-brothers