confuse

sense 1: mistake one thing for another; "you are confusing me with the other candidate"; "I mistook her for the secretary"
mistake confuse confound

sense 2: 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"
confuse throw fox befuddle fuddle bedevil confound discombobulate

sense 3: cause to feel embarrassment; "The constant attention of the young man confused her"
confuse flurry disconcert put_off

sense 4: assemble without order or sense; "She jumbles the words when she is supposed to write a sentence"
jumble confuse mix_up

sense 5: make unclear or incomprehensible; "The new tax return forms only confuse"
confuse

sense 6: make unclear, indistinct, or blurred; "Her remarks confused the debate"
confuse blur obscure