noun
big shot; higher-up; VIP
Colloquial, often slightly playful or ironic term for someone in a position of authority or importance.
会議には会社のお偉いさんがたくさん来ていた。
A lot of big shots from the company were at the meeting.
彼はすっかりお偉いさんになった気でいる。
He acts like he's some kind of big shot now.
Less common variant without the honorific お; similar meaning but slightly less polite.
Formed from the honorific prefix お, the adjective 偉い (great, important), and the honorific suffix さん, yielding a playful or colloquial term for an important person.