HMP, an acronym for "Her Majesty's Prison," refers to the corrections facilities overseen by the British government. While HMP is a commonly used term, there are many synonyms that can be used to refer to these institutions. Some of these synonyms include jail, penitentiary, prison house, correctional facility, detention center, and lockup. Each of these terms refers to the facilities where individuals are sent when they are found guilty of committing a crime. These synonyms can be used interchangeably with HMP to describe the institution of incarceration in the UK.