Correct spelling for the English word "MABNSN" is [mˈabnsən], [mˈabnsən], [m_ˈa_b_n_s_ə_n] (IPA phonetic alphabet).
"MABNSN" is not a recognized word in any dictionary. It appears to be a random sequence of letters that does not correspond to any known language or word. Therefore, it does not have a definitive dictionary definition.
If you are referring to an acronym or abbreviation specific to a certain field or context, it would be helpful to provide additional context or details so that a definition or explanation can be provided. However, without any context or known meaning, it is not possible to provide a meaningful definition for "MABNSN."
If "MABNSN" is a word or term that is specific to a personal or specialized domain, it may be necessary to refer to sources relevant to that domain, such as specific jargons, terminologies, or specific languages.
In conclusion, "MABNSN" does not have a standard dictionary definition as it is not a recognized word or term.