diva
US /ˈdiː.və/
UK /ˈdiː.və/

1.
a famous and successful female singer
:
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The opera diva received a standing ovation.
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She's a true pop diva with millions of fans.
2.
a person who is difficult to work with because they think they are more important than other people
:
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He's such a diva, always demanding special treatment.
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The actor was known for his diva-like behavior on set.