An upper house, often called a Senate, is one of two chambers of a bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller, and often has more restricted power, than the lower house. Unlike many republics, the United States does not designate an upper house in its constitution. Examples of upper houses in other countries include the UK's House of Lords, Canada's Senate, India's Council of the States, and Russia's Federation Council.