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English definition of “blood”

blood

noun [U]  /blʌd/ us  

blood noun [U] (LIQUID)

the red liquid that is sent around the body by the heart and that is necessary for life: He lost a lot of blood in the accident.

blood noun [U] (RELATIONSHIP)

a person’s relationship to a family or a nation by birth rather than by marriage: They are related by blood. She has Russian blood in her veins.

blood

adjective [not gradable]  /blʌd/ us  

blood adjective [not gradable] (RELATED)

related by birth: blood relatives a blood brother
(Definition of blood from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of blood?
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