tycoon
nounA wealthy and powerful businessperson or industrialist; a magnate.
nounUsed formerly as a title for a Japanese shogun.
nounThe title by which the shoguns of Japan were known to foreigners from the signing of the treaty negotiated in 1854 by Commodore Matthew Perry, on behalf of the United States, and Iyesada, the shogun and supposed “temporal emperor “of Japan, to the end of the shogunate in 1868, but never recognized by the Japanese.
nounThe title by which the shogun, or former commander in chief of the Japanese army, was known to foreigners.
nounA
a very wealthy or powerful businessman