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three-quarter-sibling

1- First cousin and half-sibling at the same time.
2- Child of mother and of uncle (father's brother) at the same time.
3- Child of father and of aunt (mother's sister) at the same time.
Three-quarter-sibling.
by Jazigurn October 28, 2024
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three-quarter-sibling

1- Child of mother and of uncle (father's brother) simultaneously.
2- Child of father and of aunt (mother's sister) simultaneously.
3- Cousin and half-sibling simultaneously.
Three-quarter-sibling.
by Chupite November 20, 2024
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half-co-sibling-in-law

Spouse's half-sibling's spouse.
half-co-sibling-in-law.
by Simaduria July 27, 2024
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step-co-sibling-in-law

Spouse's stepsibling's spouse.
step-co-sibling-in-law.
by Simaduria July 27, 2024
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surrogate older sibling

A person who fulfills the vacancy to be the surrogate older sibling in a family where the oldest child has left home whilst the younger sibling(s) are still too young to move out. Such vacancies are commonly found on the Happy Family sticker in the rear windshield of the family car. This role often involves providing guidance, support, and companionship in the absence of the biological older sibling.
After my older brother left home for college, someone became the surrogate older sibling, helping me navigate school and life at home.
by Emotional Cruiser September 29, 2025
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Should iKON Bobby have 2 biological sibling?

Should iKON Bobby have 2 biological sibling?
Should iKON Bobby have 2 biological sibling?
by syafinaz? October 22, 2023
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