Proper noun “Jack”
- a common male given name, often used as a diminutive of John or Jacob
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Jack was excited to start his new job.
- (US, colloquial) Jack Daniel's, a brand of Tennessee whiskey
He poured himself a glass of Jack to unwind after work.
- (US) short for Monterey Jack, a type of mild white cheese
She topped the nachos with shredded Jack.
noun “Jack”
singular Jack, plural Jacks
- a generic name for any male, often paired with "Jill"