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Share your dilemmas and get honest opinions from other Mumsnetters.

Do you refer to half-siblings as ‘step-siblings’?

73 replies

pitsoffashion · 16/02/2024 23:08

Just curious because I have noticed in a lot of threads regarding blended families so so many posters will refer to a child’s ‘step-sister’ or ‘step-brother’ despite the children in question sharing one biological parent.

I have a half-brother (same mum) and wouldn’t refer to him as a step-brother because we are biologically siblings. I don’t often even say half-brother really, just brother. I feel like calling him a step-sibling is just factually incorrect.

I just wondered if this varies and if some people see half and step interchangeable when children only share one parent.

OP posts:
funinthesun19 · 16/02/2024 23:59

Step and half are different and I never understand how people manage to get them mixed up.

I have an older half brother. I never call him that though and just call him my brother.

I also have a stepbrother. I call him my stepbrother because he’s not an actual sibling so the step part is relevant. Just connected by marriage. Got nothing against the guy, but he’s not my brother.

SemperIdem · 17/02/2024 00:03

Half and step are different.

The people I know who have “half” siblings, generally refer to them as just being their siblings.

TheFormidableMrsC · 17/02/2024 00:05

No my DD refers to her brother as her brother. He's never been "half".

whiteroseredrose · 17/02/2024 00:07

No. I call my half siblings my brothers and sisters.

Grumblevision · 17/02/2024 01:04

I have both half and step siblings (and full!) and if I'm explaining the actual relationships, I use the accurate terms. The rest of the time they're just my siblings.

Tatonka · 17/02/2024 01:06

Half is half, step is step. I would also just refer to them as brother or sister, unless it needed explaining for some reason

ChelseeDagger · 17/02/2024 01:14

My dad's wife made my half brothers call me their step sister.

She was the OW in my parents marriage (one of many) so her moral compass probably wasn't to be relied upon well before they were born.

She is the only person I have known to mix the two and it was done rather pointedly. Everyone knows the difference after all.

5YearsLeft · 17/02/2024 01:17

I guess maybe this could be confusion from step parents who don’t know the difference? ie a step mum thinks, “Well, I am DSS’ step mum and he is my step son, so my daughter is his step sister,” not realizing that no, they share a father so they’re half siblings. But yes, ideally, people should understand how their children are related because even if the current relationship ends, the children from it and any past relationships will still be related. This is an even better reason to foster the bond between them, as opposed to so many people talking about their stepson/daughter vs. their biological child, and not seeming yo realize they’re denying their child a possibly helpful and fulfilling sibling relationship.

toastwithmarmalade · 17/02/2024 01:34

I also notice @pitsoffashion that people mistake the two!

We say half-sibling here. Step sibling is very different!

Containerhome · 17/02/2024 01:45

Just siblings surely

PhoenixStarbeamer · 17/02/2024 01:49

My half siblings are just referred to as my siblings. My step siblings, as in my step dad's kids, are called my step siblings. No idea why or how people confuse them so much. I guess it's the families who don't have step or half siblings that do.

CitySkyAintTheSameBlack · 17/02/2024 02:14

Step and half are different things, but I have both and they’re equally as irrelevant to my life.

I only class my full siblings as siblings.

LauderSyme · 17/02/2024 02:19

Step and half are not interchangeable. People who think they are, are wrong.

Justfinking · 17/02/2024 03:19

5YearsLeft · 17/02/2024 01:17

I guess maybe this could be confusion from step parents who don’t know the difference? ie a step mum thinks, “Well, I am DSS’ step mum and he is my step son, so my daughter is his step sister,” not realizing that no, they share a father so they’re half siblings. But yes, ideally, people should understand how their children are related because even if the current relationship ends, the children from it and any past relationships will still be related. This is an even better reason to foster the bond between them, as opposed to so many people talking about their stepson/daughter vs. their biological child, and not seeming yo realize they’re denying their child a possibly helpful and fulfilling sibling relationship.

I think only if you're thick. Half is because you share blood

TheOriginalEmu · 17/02/2024 04:15

pitsoffashion · 16/02/2024 23:08

Just curious because I have noticed in a lot of threads regarding blended families so so many posters will refer to a child’s ‘step-sister’ or ‘step-brother’ despite the children in question sharing one biological parent.

I have a half-brother (same mum) and wouldn’t refer to him as a step-brother because we are biologically siblings. I don’t often even say half-brother really, just brother. I feel like calling him a step-sibling is just factually incorrect.

I just wondered if this varies and if some people see half and step interchangeable when children only share one parent.

I have siblings with whom I share both parents, one parent, one parent through adoption and who are siblings because our parents married each other. To me they are all my siblings. I’m closer to some than others, but that’s personality driven not blood, and I don’t refer to them as anything but my siblings.
but if I was being accurate for medical purposes or something, step-siblings are the ones I’m not related to by blood or adoption.

YankSplaining · 17/02/2024 04:52

Bellsra · 16/02/2024 23:30

Step and half are 2 totally different things, to be honest find it quite offensive if anyone refers to ‘half’ sibling, it’s usually said in a way to try and undermine the significance of the relationship. Quite normal for step brothers and sisters to be referred to as such however unless perhaps grew up together from a young age/very close

My husband has a half-sister. While I refer to her as his sister if I’m talking to someone who knows they have different dads, I tend to mention she’s his half-sister if I’m talking about her to someone who doesn’t know her. I’m neuro-atypical, and if I don’t make the “half-“ distinction at some point, I feel like I’m lying or misleading people. Or like the difference will turn out to be important in some mysterious way I can’t foresee, and then I’ll have inadvertently messed up something by giving people the “wrong” information.

Just wanted to throw that out there.

5YearsLeft · 17/02/2024 07:41

Justfinking · 17/02/2024 03:19

I think only if you're thick. Half is because you share blood

Yes, to be fair, I was trying to be kind about it, but there are a lot of thick people out there.

DustyLee123 · 17/02/2024 07:44

My evil step mother used to say that her son was a full brother of our half sibling, whereas I was the step sister. No wonder I hated her.

Bellsra · 17/02/2024 07:50

YankSplaining · 17/02/2024 04:52

My husband has a half-sister. While I refer to her as his sister if I’m talking to someone who knows they have different dads, I tend to mention she’s his half-sister if I’m talking about her to someone who doesn’t know her. I’m neuro-atypical, and if I don’t make the “half-“ distinction at some point, I feel like I’m lying or misleading people. Or like the difference will turn out to be important in some mysterious way I can’t foresee, and then I’ll have inadvertently messed up something by giving people the “wrong” information.

Just wanted to throw that out there.

I can understand that in your context you’re not trying to be malicious and I think it’s quite different if we’re just talking to friends/acquaintances who will be unlikely to ever have any contact with the said people. If someone is answering a questions on a medical basis too that accuracy could be quite important. My younger children don’t have any concept of their older siblings being ‘half siblings’ but one of my step children said something about being their ‘half’ brother the other week and it did make me think who had said that to them to highlight they were ‘only’ half siblings, thought it was quite sad really. Although equally it could of just been a discovery on the part of the sibling of the term and children just think they’re doing the right thing by being accurate without being aware of the social norms

Coconutter24 · 17/02/2024 08:20

YetMoreNewBeginnings · 16/02/2024 23:48

I think people just don’t think before replying about the fact that the OPs step child isn’t their child’s step sibling

They see the word step in the OP and it sticks

Isn’t OP talking about her own half brother not her step child?

FramboiseRoyale · 17/02/2024 15:00

I make the "half" distinction only if it is relevant to the situation. Several years ago my brother, with whom I share a father, but not a mother, had a serious medical condition that required a detailed family history. The "half" was relevant to that. But otherwise we are simply brother and sister.

Nowvoyager99 · 17/02/2024 15:04

I think it’s either because posters haven’t read properly or they’re just thick.

I always refer to my half siblings as my brother or sister, and would only elaborate further if it were relevant/necessary.

Mountainpika · 17/02/2024 15:06

Just to add to the confusion, I call my husband's half brother (same mother) my brother.............

Vroomfondleswaistcoat · 17/02/2024 15:15

It's a distinction that annoys me too. Last night I was listening to the audio book of Terry Pratchett's 'Feet of Clay' where Carrot refers to his adoptive mother as his 'step-mother' and I had to grit my teeth at that bit.

It's along the same lines as 'fiance' being used interchangeably for male or female engaged persons. Annoying when one is trying to work out relationships, particularly in written terms on a forum.

Sibilantseamstress · 17/02/2024 15:19

I have a half sister who I tend to refer to as a half sister. We are 18 years apart, grew up in different countries. It’s not malice, just feels more accurate. If we grew up together in the same household, it would feel more natural to refer to her as just “sister.”

Situations are not all the same.