1 : the base of a column or other tall object
the pedestal of a vase/lamp/statue
2 — used to describe the position of someone who is admired, successful, etc.
Her boyfriend put/placed her on a pedestal. [=thought of her as a perfect person with no faults]
He wanted a career as an actor, but he didn't want to be put on a pedestal. [=to be treated like a big star]
They're trying to knock the champions off their pedestal. [=to defeat the champions]