How do you say stepsister, stepbrother, half-sister, half-brother?

Question

Answer

sister : 언니[누나/여동생/누이]
stepsister : 의붓 언니[누나/여동생/누이]
half-sister : 어머니[아버지]가 다른 [이복/이부] 언니[누나/여동생]

brother:형[남동생/오빠] 
stepbrother: 의붓 형[남동생/오빠] 
half-brother : 어머니[아버지]가 다른[이복/이부] 오빠[형/남동생]