During 2016 we present one false friend each week.
irritieren (verwirren) (DE) = to confuse (EN)
irritate (EN) = (ver)ärgern (DE)
English synonyms for irritate = to upset, anger, annoy
Examples – to confuse: Sorry, I'm a little confused. What exactly would you like me to do? (We've used the adjective form of the word here, which is more commonly used than the verb.)
Examples – to irritate: He irritated the other meeting participants by constantly checking his cell phone while other people were speaking.