influential figure; boss; big shot
Refers to a person who wields informal influence or authority within a group, community, or organization, often beyond official titles. Can carry a slightly rough or underworld nuance, but also used neutrally for local leaders or prominent figures.
He is known as a local influential figure.
The bosses of that organization gathered and discussed.
Compound of 顔 (face, reputation) and 役 (role, duty). The word likely developed from the idea of a person whose 'face' carries weight in a group, i.e., someone with a recognized role and influence.