Your mom's sister.
aunt
They are your uncle's or aunt's chiildren.
cousins
Your wife's or husband's mother.
mother-in-law
Your grandparents' parents.
great-grandparents.
Your sister's or brother's son.
nephew
Your dad's wife.
mother
Your wife's or husband's father.
Father-in-law
The person who sits next to you in school.
classmate
It's you mom's mom.
grandmother
Any person from your family.
relative
The person who works with you.
colleague
A brother or sister who was born at the same time as you.
twin
The person who lives next to you.
neighbour
Your dad's second wife.
step-mother
Your sister's or brother's daughter.
niece
You dad's brother.
uncle