Correct spelling for the English word "MGMIN" is [ˌɛmd͡ʒˈiːmˈɪn], [ˌɛmdʒˈiːmˈɪn], [ˌɛ_m_dʒ_ˈiː_m_ˈɪ_n] (IPA phonetic alphabet).
MGMIN is not a recognized acronym or abbreviation in the English language, and therefore it does not have an existing dictionary definition. It is possible that "MGMIN" may be a specific term, acronym, or abbreviation used within a particular context or industry, but without further information or context, it is difficult to provide an accurate definition. If you could provide more details about the term, including the field or context in which it is used, it would enable us to provide a more precise definition.