British peerage refers to the system of titles and ranks in the United Kingdom, traditionally associated with the nobility. It includes various titles such as duke, marquess, earl, viscount, and baron. These titles can be hereditary, passed down through generations, or life peerages, granted for an individual's lifetime by the monarch. The peerage system plays a significant role in British history and society, influencing politics and culture. Members of the peerage often sit in the House of Lords, one of the two houses of the Parliament of the United Kingdom, where they contribute to legislative processes and debates.