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English definition of “birth”

birth

noun [C/U]    /bɜrθ/
the occasion when a baby comes out of its mother’s body: [C] He remembered the birth of their first child. [U] Their son weighed eight pounds at birth. Birth also refers to your family origin: [U] She was Swedish by birth. When a woman gives birth, one or more babies come out of her body: [U] She gave birth to twins.
(Definition of birth noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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