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English definition of “debut”

debut

noun [C usually sing]  /ˈdeɪ·bju, deɪˈbju/ us  
a first public appearance or activity: Cassavetes made his film debut in “Taxi” in 1953.
debut
verb [I/T]  /ˈdeɪ·bju, deɪˈbju/ us  
[T] I’ll be debuting this song next Saturday night.
(Definition of debut from the Cambridge Academic Content Dictionary © Cambridge University Press)
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