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Synonyms

stepsister

American  
[step-sis-ter] / ˈstɛpˌsɪs tər /

noun

  • stepsisters
    plural
  1. one's stepfather's or stepmother's daughter by a previous marriage.


stepsister British  
/ ˈstɛpˌsɪstə /

noun

  1. a daughter of one's stepmother or stepfather by a union with someone other than one's father or mother respectively

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of stepsister

late Middle English word dating back to 1400–50; see origin at step-, sister

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Things will be stressful enough in the wake of her passing, and on top of that you will have to watch your stepsister like a hawk.

From MarketWatch Feb. 13, 2026

I could relate to those feelings of shame and despair she felt when she realized she was the stepsister.

From Salon Apr. 18, 2025

And all the dreamier if they put that team in her town — and not that stepsister city across the river.

From Los Angeles Times Apr. 8, 2025

Baena's surviving family includes his mother Barbara Stern and stepfather Roger Stern; father Scott and stepmother Michele Baena; brother Brad Baena; stepsister Bianca Gabay and stepbrother Jed Fluxman.

From BBC Jan. 7, 2025

That’s when Sam explained that they were actually stepsister and stepbrother since Patrick’s dad married Sam’s mom.

From "The Perks of Being a Wallflower" by Stephen Chbosky

They were stepsisters who hadn’t seen each other since they were little girls.

From The Wall Street Journal Jun. 21, 2026

But “Grounded” would have been better left without its imposed topic, which inadvertently casts much work as ugly stepsisters unsuccessfully trying to jam their feet into Cinderella’s glass slipper.

From Los Angeles Times Oct. 9, 2025

Despite the family's efforts to protect them, her younger stepsisters found out that their father and mother were trapped under the rubble from other children at school.

From BBC Apr. 9, 2025

The beneficiaries are now Keough and her two younger stepsisters.

From New York Times Mar. 9, 2023

“But wait — what will — will my stepmother and stepsisters see you?”

From "Ash" by Malinda Lo

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