One of my oldest, dearest friends uses the word irregardless. She is smart and highly educated, yet insists on using this non-word. Should I correct her? Cracked.com says yes and lists eight other words that don’t mean what we think they do with advice on whether it’s worth insisting people use them the right way. Although the site’s presentation is crude, the explanations of how we’re using peruse, ironic, pristine, nonplussed, bemused, enormity, plethora, and deceptively incorrectly and what they really mean are clear and entertaining. Do you have any to add?