If you mean how to say mother,
Mother:
Mater, Mutter, Muttertier, Mama
If you meant how to call your mother who is in Germany,
Type +49 (this is the area code) before their number on the phone.
In Germany, Mother's Day is celebrated on the second Sunday of May.
Your mother-in-law. Or, call her by her name.
You still call her your mother in law or if you were divorced you would call her your Ex- mother in law.
shivaji's mother call shivaji as shurba
You would call your mother's sister an aunt.
Your grandmother.
Your grandmother.
your great grandmother
your great grandmother
one is Germany, Russians call Russia , Mother Russia, but those are the only two I'm absolutely certain on
Your half-sister's mother may be your mother, if you have different fathers. If you have different mothers and your father is married to your half-sister's mother, then you probably should call her "mother." If your half-sister's mother is not connected to your father (i.e. her father married your mother) then there is no relationship name for you to call her mother, other than "my half-sister's mother."
We call it "weihnachten"