To baffle is to confuse. If you are completely puzzled as to what baffle means, you might say that this word baffles you.
Baffle means "confuse," but it can also mean "amaze." A magician might baffle you with an impressive magic trick. Additionally, this verb can mean "to spoil, thwart, or defeat by means of confusion." In a debate, you might baffle the opposition by introducing new information that your opponents are not familiar with. Baffle can also be used like stump. If you are stumped by a question on a test, then you’ve been baffled by that question.