Member of Parliament
A Member of Parliament (MP), in a parliamentary system of government is a politician elected to a seat in the parliament.
The government ministry (including the Prime Minister) is made up of MPs who belong to the party (or parties) of government. The opposition parties select MPs from their side to form a "shadow" ministry. MPs who are members of the ministry or shadow ministry are known as front benchers, because they sit in the front rows of the parliament. MPs who are not members of the ministry or shadow ministry are known as back benchers.
In the Republic of Ireland Members of Parliament are known by the Irish translation "Teachta Dála" (Chyok-ta Daw-la), abbreviated as TD.