baby sister
The term "baby sister" is often used affectionately to refer to a younger female sibling, regardless of her age, and highlights her position in the family.
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Definition
B1Family
(informal)A younger female sibling, often referred to affectionately, regardless of her age.
Example
- Despite being in her twenties, she's still the baby sister in the family.
- My baby sister just started college, and we're all very proud of her.
B2Connotation
(informal)The youngest female sibling who is often seen as the most pampered or favored in the family.
Example
- As the baby sister, she always gets the most attention from our parents.
Similar
Terms that have similar or relatively close meanings to "baby sister":
baby brotherblood sisterbaby of the familyhalf sister-in-lawlittle girlthree-quarter sisterblood siblinghalf auntsister companylittle oneweak sisteronly daughterlittle ladydouble auntlittle friendold girllittle womanbig girlmaternal aunt