House of Representatives
A House of Representatives is a part of some legislatures, which are law-making bodies.  In a House of Representatives, the members are called representatives.  For example, the legislature of the United States, called Congress, is made up of two parts.  One of these parts is called the House of Representatives and the other one is called the Senate.  A representative in the United States Congress is a "U.S. Representative".  Many state legislatures in the United States also have Houses of Representatives.  A representative in one of those state houses is a State Representative.