Alternative spelling of whiz

(video games, informal) wizard mode

(video games, informal) A mode of play in roguelike games, allowing the player to create objects on demand, to be resurrected in the case of death, etc.

(slang) Alternative form of take a whiz: to urinate.

(rare, informal) A wizard.

plural of wizzy

the state of being a wizard

(US, regional) wizened

(computer science, slang) Structure and Interpretation of Computer Programs (1985), a notable computer science textbook that teaches fundamental principles of computer programming, including recursion, abstraction, modularity, and programming language design and implementation.

Wizardry; black magic.