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English definition of “infancy”

infancy

noun [U] uk   /ˈɪn.fən.si/ us  
C2 the time when someone is a baby or a very young child: Her youngest child died in infancy.Stages of lifeChildren and babies be in its infancy C2 to be very new and still developing: The system is still in its infancy.NewModern and fashionable
(Definition of infancy from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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