WordNet: important person, influential person, personage

a person whose actions and opinions strongly influence the course of events

• hypernym adult, grownup

• hyponym big cheese, big deal, big enchilada, big fish, big gun, big shot, big wheel, head honcho

• hyponym celebrity, famous person

• hyponym behemoth, colossus, giant, heavyweight, titan

• hyponym elder statesman

• hyponym eminence grise

• hyponym Excellency

• hyponym fixer, influence peddler

• hyponym heavy hitter

• hyponym hierarch

• hyponym high-muck-a-muck, pooh-bah

• hyponym kingmaker

• hyponym bigwig, kingpin, top banana

• hyponym magnifico

• hyponym figure, name, public figure

• hyponym nepotist

• hyponym policy maker

• hyponym power broker, powerbroker

• hyponym sacred cow

• hyponym sirdar

• hyponym socialite

• hyponym sun

• hyponym VIP, dignitary, high-up, high muckamuck, panjandrum, very important person

• hyponym worthy

important person

• (suomi) tärkeä henkilö (synonyymi)

influential person

• (suomi) vaikutusvaltainen henkilö (synonyymi)

personage

• (suomi) arvohenkilö (synonyymi)