The correct spelling of the phrase "more unbosom" is /mɔːr ʌnˈbʊzəm/. The word "unbosom" means to reveal one's thoughts or feelings to someone else. The prefix "un-" negates the meaning of the word "bosom," indicating that one is not keeping something close to their chest. By adding "more" before "unbosom," it suggests that there is a greater degree of openness and sharing happening than before. Overall, this phrase suggests a willingness to be vulnerable and open with others.