Mp
MP is a common initialism with several meanings. In politics, it stands for Member of Parliament, a person elected to a legislative body in many Commonwealth countries and other systems. MPs debate laws, scrutinize the government, and represent constituents. Elections determine who serves as an MP, and tenure varies by country; examples include the UK House of Commons, Canada's House of Commons, and India's Lok Sabha.
In a military context, MP means Military Police, the police arm of the armed forces. Military police
In technology and imaging, MP denotes megapixel, a unit of image resolution. A megapixel equals one million
Other uses exist, depending on field, so context is important. MP is a general acronym; without context