Definition of “debut” - English Dictionary

“debut” in British English

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debutnoun [ C ]

uk /ˈdeɪ.bju/ us /ˈdeɪ.bju/

C1 the occasion when someone performs or presents something to the public for the first time:

She made her professional stage debut in Swan Lake.
He started as an actor, making his debut as a director in 1990.
her debut (= first) album

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debutverb [ I usually + adv/prep ]

uk /ˈdeɪ.bju/ us /ˈdeɪ.bju/

to perform or be introduced to the public for the first time:

The Broadway show debuted last year to great acclaim.

(Definition of “debut” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“debut” in American English

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debutnoun [ C usually sing ]

us /ˈdeɪ·bju, deɪˈbju/

a first public appearance or activity:

Cassavetes made his film debut in “Taxi” in 1953.
debut
verb [ I/T ] us /ˈdeɪ·bju, deɪˈbju/

[ T ] I’ll be debuting this song next Saturday night.

(Definition of “debut” from the Cambridge Academic Content Dictionary © Cambridge University Press)

“debut” in Business English

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debutnoun [ C ]

uk /ˈdeɪbjuː/ us /deɪˈbjuː/

the first time that something appears in public, or that a product, service, or shares become available to buy:

Shares in the company rose 12% on their stock market debut.

debutverb [ I or T ]

uk /ˈdeɪbjuː/ us /deɪˈbjuː/

if a company debuts a product, service , or share, or if it debuts, it becomes available to the public for the first time:

The company has recently debuted its new website.
Drug discount cards, approved by Medicare, debuted last year.

(Definition of “debut” from the Cambridge Business English Dictionary © Cambridge University Press)