máthair agus iníon agus deirfiúr. (agus = and)
The Irish word for 'daughter' is iníon(in-yeen).
deirfiúr
Your sister's daughter is your niece. Note the apostrophe s on sister's, because the girl 'belongs to' your sister.
máthair
mháthair
Iníon deas.
In Tamil, you would say "அம்மாவின் சகோதரி" to refer to your mother's sister.
If it is YOUR mother or daughter just say hi mum/daughter or Dear Mother or daughters name.
Nephew Sister's daughter is niece
ooh my name is NABIEA SHEHMA MYfather told me it was the name of hazrat muhammad (SAW) NAMIC SISTER NAME MEAN NOT REAL SISTER THE SISTER WHO IS NOT THE DAUGHTER OF UR MOTHER OR FATHER BUT SAY TO HER U R MY SISTER
máthair chéile
In Spanish, you say mother as "madre" and son as "hijo."