The term 'Big Boss' is a colloquialism used to refer to someone in a position of authority, such as a supervisor or manager. The two crossword solutions for this term are 'Prexy' (5 letters) and 'PREZ' (4 letters). Both terms are abbreviations for President, which is often used to refer to someone in a position of power. Therefore, the two crossword solutions for the term 'Big Boss' refer to someone who is in a position of authority.