A parliamentarian is a person who is knowledgeable in the rules and procedures of a legislative body. The term can refer to a professional who advises on parliamentary procedure, or to a member of a legislature who is an expert in the rules of the house. The crossword solutions for the term 'parliamentarian' are POL (3 letters), EARL (4 letters), PEER (4 letters), and LORD (4 letters). POL stands for 'Parliamentary Official, ' EARL stands for 'EARL of Parliament, ' PEER stands for 'Parliamentary PEER, ' and LORD stands for 'LORD of Parliament.'