Definitions

1. noun

a person who is exceptionally skilled or knowledgeable about something

“She was a whiz with computers and helped us fix the problem in minutes.”

2. verb

to perform something with great skill or speed

“He whiz-ed through the obstacle course in record time.”

3. interjection

an expression of surprise or admiration

“Wow, that was a whiz! How did you do that?”

4. adjective

exceptionally skilled or knowledgeable about something

“He’s a whiz at fixing cars and helped us get ours back on the road quickly.”