Justin Bieber's amazingly gorgeous little half sister's name is Jazmyn Kathleen Bieber.
The half-sister of your granddaughter's half-sister is your granddaughter, or is not related to you.
You grandmother's half-sister is your half-grandaunt.
You have no blood line relation, You don't share DNA whatsoever. In this scenario putting an example; you and your half-sister share, let's say, the same father but not the same mother and your half-sister's half-sister share the same mother but not the same father. There is no shared DNA between you and your half-sister's half-sister.
King Tuts wife was his half-sister.
Roald Dahl called his sister Ellen his "Ancient Half Sister."
She has 1 sister, a step-sister, a step-brother, a half-sister and a half-brother
your half sisters cousin would be your cousin
She doesn't have a half sister.
Sarai was Abram's half sister.
If your half-sister had a son that would be a half-nephew to you
He has a half sister.
Your half-brother's half-sister could be your full sister, or not related to you at all. For example, say your parents are Joe and Mary and your half-brother's parents are Mary and Steven. Say your half-brother's half-sister is Barbara. If Joe and Mary are Barbara's parents, then she is your full sister and your half-brother's half-sister. If Barbara's parents are Steven and Jane, then Barbara is not related to you (unless there is an adoption).