0C4R

Zeroth-cousin-four-times-removed:
1- great-great-grandpibling (great-great-grandparent's sibling)
2- great-great-grandnibling (sibling's great-great-grandchild)

My great-great-grandpibling is my 0C4R in theory and my great-great-grandnibling is also my 0C4R in theory.

by KNN128 May 21, 2021

N1C7R

Negative-first-cousin-seven-times-removed: great-great-great-great-great-grandparent or great-great-great-great-great-grandchild.

My great-great-great-great-great-grandparent is my N1C7R in theory and my great-great-great-great-great-grandchild is also my N1C7R in theory.

by KNN128 May 21, 2021

0C

Zeroth-cousin: sibling.

My sibling is my 0C.

by KNN128 May 21, 2021

N1C4R

Negative-first-cousin-four-times-removed: great-great-grandparent or great-great-grandchild.

My great-great-grandparent is my N1C4R in theory and my great-great-grandchild is also my N1C4R in theory.

by KNN128 May 21, 2021

N1C2R

Negative-first-cousin-twice-removed: grandparent or grandchild.

My grandparent is my N1C2R in theory and my grandchild is also my N1C2R in theory.

by KNN128 May 21, 2021

0C9R

Zeroth-cousin-nine-times-removed:
1- great-great-great-great-great-great-great-grandpibling (great-great-great-great-great-great-great-grandparent's sibling)
2- great-great-great-great-great-great-great-grandnibling (sibling's great-great-great-great-great-great-great-grandchild)

My great-great-great-great-great-great-great-grandpibling is my 0C9R in theory and my great-great-great-great-great-great-great-grandnibling is also my 0C9R in theory.

by KNN128 May 21, 2021

0C1R

Zeroth-cousin-once-removed:
1- pibling (parent's sibling)
2- nibling (sibling's child)

My pibling is my 0C1R in theory and my nibling is also my 0C1R in theory.

by KNN128 May 21, 2021