1. 大款：大款 tycoon | 大满贯 grand slam | 大排挡 sidewalk snack booth; large stall

1. 大亨;巨头;大实业家
A tycoon is a person who is successful in business and so has become rich and powerful.

e.g. …a self-made Irish property tycoon.
白手起家的爱尔兰房地产巨头

noun

1. a very wealthy or powerful businessman

e.g. an oil baron

Synonym: baronbig businessmanbusiness leaderkingmagnatemogulpowertop executive