Final answer:
The term for 'half-sister' in Spanish is 'la media-hermana'.
Step-by-step explanation:
In Spanish, the term for 'half-sister' is la media-hermana. The word 'media' means 'half' in Spanish and 'hermana' means 'sister'. So, when you combine the two, you get 'media-hermana', which translates to 'half-sister'.
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