21 Words You've Probably Been Mispronouncing Your Whole Life Mischievous. You thought this one has four syllables when it really has only three. Mauve. While most people say "mawve," the correct pronunciation is actually "moave"--as in, rhymes with "grove." Espresso. There is no "x" in espresso. Kilometer. Prerogative. Supposably. Nuclear. Asterisk.