star
US /stɑːr/
UK /stɑːr/

1.
a celestial body of hot gases that radiates energy derived from thermonuclear reactions in its interior
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The night sky was filled with twinkling stars.
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Our sun is a star.
2.
3.
a conventionalized representation of a star, typically one with five or six points
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The flag has fifty stars.
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She drew a little star on the card.
1.
excellent or outstanding
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She gave a star performance.
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He's a star student.