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Example:She is a genius at problem-solving and can always come up with the most innovative solutions.

Definition:An extremely intelligent, clever, or gifted person

Example:Tom is the superstar in the IT department, known for his exceptional programming skills.

Definition:A person who is admired by many people and achieves great success in a particular field

Example:John is the expert in cybersecurity, respected for his in-depth knowledge and problem-solving abilities.

Definition:A person with a skillful knowledge or mastery of a particular subject