Mensa Member is a term used to describe someone who is a member of Mensa, an international high IQ society. The term can be broken down into three crossword solutions: GENIUS (6 letters), BRAIN (5 letters), and EINSTEIN (8 letters). GENIUS is a term used to describe someone with exceptional intelligence or talent, while BRAIN is a slang term for someone who is intelligent. EINSTEIN is a reference to the famous physicist Albert EINSTEIN, who is widely considered to be one of the most intelligent people in history. Together, these three words describe someone who is a member of Mensa, an organization that requires its members to have an IQ in the top 2% of the population.