What is the term for the upper house in a bicameral legislature?

The term for the upper house in a bicameral legislature is "Senate." A bicameral legislature consists of two separate chambers or houses that work together to create and pass legislation. The Senate typically serves as the upper house in many countries' legislative systems, including the United States and Canada.

The role of the Senate often includes reviewing and amending legislation passed by the lower house, providing a different perspective on proposed laws, and serving as a check on the actions of the lower house. In contrast, the House of Representatives is usually the lower house, where representation is often based on population.

Parliament is a general term that refers to the legislative body in countries such as the UK and Canada, but it encompasses both the upper and lower houses. Similarly, "Assembly" is a broader term that can refer to various types of legislative bodies, but it does not specifically denote the upper house in a bicameral system.