ˌmōdəs ˌäpəˈrandē,ˌmōdəs ˌäpəˈrandī/
a particular way or method of doing something, especially one that is characteristic or well-established.
A modus operandi (often shortened to M.O.) is someone’s habits of working, particularly in the context of business or criminal investigations, but also more generally. It is a Latin phrase, approximately translated as method or mode of operating