The word "unlern" is not recognized as a correct spelling in English. The correct spelling is "unlearn," pronounced as /ˌʌnˈlɜːrn/. The /ʌ/ represents the vowel sound in "up" while the /ɜː/ represents the sound in "bird." The ending of "learn" is replaced with "un" in "unlearn" to indicate the opposite or negative form of the word. It is important to use correct spelling to avoid confusion and improve communication in written and spoken language.