Do you use a sock puppet to secretly keep track of your frenemies? Plan to spend your staycation watching vlogs and webisodes? Or perhaps you plan to signal a flash mob for a quick bite of shawarma. If you're not entirely certain what all that means, turn to the latest edition of the Merriam-Webster's Collegiate Dictionary, which has added about 100 new words that largely reflect changing trends in American society. There are words such as locavore (one who eats foods grown locally), frenemy (someone who acts like a friend but is really an enemy), waterboarding (an interrogation technique use to induce the sensation of drowning), vlogs and webisode (a TV show that can be viewed at a Web site). Many words have cross-cultural roots, including shawarma and reggaeton (music that combines rap and Caribbean rhythms).
