1. [verb] To confuse; to mix up; to puzzle.
2. [verb] To fail to see the difference; to mix up; to confuse right and wrong.
3. [verb] To make something worse.
4. [verb] To cause to be ashamed; to abash.
5. [verb] To defeat, to frustrate, to thwart.
6. [verb] (dated) To damn (a mild oath).
7. [verb] (archaic) To bring to ruination.
8. [verb] To stun, amaze
9. [noun] (statistics) a confounding variable
10. [verb] Be confusing or perplexing to; cause to be unable to think clearly; 'These questions confuse even the experts'; 'This question completely threw me'; 'This question befuddled even the teacher'.
11. [verb] Mistake one thing for another; 'you are confusing me with the other candidate'; 'I mistook her for the secretary'.
