baron
noun
[ ˈbar(ə)n ]
• a member of the lowest order of the British nobility. Baron is not used as a form of address, barons usually being referred to as ‘Lord’.
• an important or powerful person in a specified business or industry.
• "a press baron"
Similar:
magnate,
tycoon,
mogul,
captain of industry,
nabob,
grandee,
mandarin,
industrialist,
proprietor,
entrepreneur,
executive,
chief,
leader,
big shot,
bigwig,
honcho,
big wheel,
fat cat,
Origin:
Middle English: from Old French, from medieval Latin baro, baron- ‘man, warrior’, probably of Germanic origin.