Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun high-up

1 sense of high-up

Sense 1
very important person, VIP, high-up, dignitary, panjandrum, high muckamuck -- (an important or influential (and often overbearing) person)
       => important person, influential person, personage -- (a person whose actions and opinions strongly influence the course of events)

Synonyms of adv high-up

1 sense of high up

Sense 1
high, high up -- (at a great altitude; "he climbed high on the ladder")