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Difference Between Step-siblings and Half Sibilings

Step-siblings vs Half Sibilings

In movies, TV series, and fairy tales, we always hear of step-siblings and half siblings. Oftentimes, these step-siblings and half siblings act as the antagonists in these situations. They often make the lives of their other step- and half siblings miserable. Just like in Cinderella, her step-siblings made her life miserable until she met her Prince Charming. That ends the story.

Oftentimes, we confuse the words “step-siblings” and “half siblings.” We do not know which is which and what to use at the right time.

“Sibling” is defined as “two or more persons who share a common parent at least a mother or a father.” Male siblings are termed as “brothers” or “brother” while female siblings are termed as “sisters” or “sister.” All throughout the world, siblings grow together having this attachment to each other. Since they say that blood is thicker than water, siblings help one another in more important ways than friends or other relatives. What brings them close together are the innate characteristics they share or inherited from their parents or grandparents. This commonality in them makes them closer together.

“Half sibling” is defined as “siblings having a common mother or siblings having a common father but not having the same biological father or mother respectively.” A half sibling with the same mother is termed as a “uterine” sibling, and a half sibling with the same father is termed as “agnate” or “consanguine.” Half siblings are usually a topic of discussion in terms of inheritance because they usually have the rights over these properties.

“Step-sibling,” or also known as “stepbrother” or “stepsister” is someone who is not related to you by blood. They have other parents before one of their parents, either the mother or father, engaged into another relationship who thus becomes a stepparent for the other biological siblings of the other party. Thus, he or she is the son or daughter of a stepparent. To elaborate this, for example, your mother died and your father married another woman who happens to have other kids. Those other kids are your step-siblings. You do not have any blood relation.

A great example of step-siblings is the classic story of Cinderella. Cinderella’s father had another woman which became Cinderella’s stepmom. Her stepmom has two daughters, and those two daughters are Cinderella’s step-siblings.

The word “sibling” came from an Old English word,“sibling” meaning “relative.”


1.A half sibling is also known as a half brother or half sister while a step-sibling is also known as a stepbrother or stepsister.
2.A step-sibling, also known as a stepbrother or stepsister, is someone who is not related to you by blood while a half sibling is defined as siblings having a common mother or common father but not having the same biological father or mother respectively.
3.The word “sibling” came from an Old English word,“sibling” meaning “relative.”

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  1. I want to know have wife from wife I have step childern now I got one son from my wife so they r real brother sister or step and what is the relation of this son with my own blood I mean I have 2 childern from my first wife

    • Mohamed your son with your new wife is a half-sibling to your other wife’s existing children from both marriages, as he only shares blood with one parent, you.
      If you had a 2nd child with your new wife then that would be a normal brother or sister to your son. (no step or half)

  2. Yes everything is fine

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