a sister of one's father or mother

member of a family

brothers

male sibling

a son of the same parents as another person

male sibling

relatives by marriage

member of a family

(used collectively) family; relations

blood relative

friends and relations

blood relative

a daughter of one's brother or sister

member of a family

a member of the same family as another person; connection; (usually plural) dealings; affairs

connection, family connection

a daughter of the same parents as oneself or another person; a woman who behaves like a sister; a senior hospital nurse; a member of a religious society; nun

female sibling