whole sister

noun

a sister whose parents are the same as one's own.

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Based on the Random House Dictionary, © Random House, Inc. 2016.
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Dortch's whole sister, Adrianna, is living next door to him, and is eighty-five years old going on eighty-six.

Slave Narratives: A Folk History of Slavery in the United States From Interviews with Former Slaves: Volume II, Arkansas Narratives, Part 2 Work Projects Administration

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