As a verb, "quiz" means:
* To test someone's knowledge or understanding, typically with short, informal questions. For example: "The teacher quizzed the students on their vocabulary."
* To ask someone a question or a series of questions, often in a playful or informal way. For example: "I quizzed my friend about her new job."
Here are some examples of "quiz" used as a verb:
* "The professor will quiz us on the material next week."
* "My friend quizzed me about my favorite band."
* "I like to quiz myself on geography facts."