From Longman Dictionary of Contemporary Englishmispronouncemis‧pro‧nounce /ˌmɪsprəˈnaʊns/ verb [transitive] SLto pronounce a word or name wrongly —mispronunciation /ˌmɪsprənʌnsiˈeɪʃən/ noun [countable, uncountable]→ See Verb table
Examples from the Corpus
mispronounce• What's more, were I sure I was mispronouncing, I might not have worried that much.• Their high voices squealing with delight when Carla mispronounced some word they coaxed her to repeat.• Um, if I mispronounce your name, I am terribly sorry. 