Your sister's daughter is your niece and her granddaughter is your great niece.
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The granddaughter should appreciate any amount the grandmother can afford. It is best not to over spend to impress the granddaughter and only give what you can afford. Anywhere from $50; $100 or more if you can financially afford it.
granddaughter
You would be 2nd cousins, assuming that the brother's wife's granddaughter is also the brother's granddaughter. If the granddaughter is not the granddaughter of the brother, there is no relationship.
The word "granddaughter" is one word. Otherwise, it is praising a daughter.
If your dad's ex wife was your mother then no, you should not date ex wife's granddaughter because of genes. If your dad's ex wife was his second wife then yes, you could date your stepmother's granddaughter.
Elvis does not have a granddaughter .
Under any normal situation, a grandmother should be allowed to share a room with her granddaughter at any age.
Your granddaughter is your sister's great niece. Your sister is your granddaughter's great aunt.
No. Granddaughter is a noun. Except for the possessive form (granddaughter's) there is no adjective as there is for daughter (daughterly).
You granddaughter is a great great niece of your aunt. Your aunt is your granddaughter's great great aunt.