Minamoto no Yoritomo, the first shogun of the Kamakura shogunate (1179). Definition: 1) a top leader (as in politics) 2) a businessperson of exceptional wealth and power : magnate They become tech tycoons by creating a media platform on which unpaid users do the work, for hours every day, and they sell ads against it. — Mary McNamara, The Los Angeles Times, 18 Apr. 2022 While tycoon now most often