government office; public office
Refers to the physical offices or premises of a public or governmental organization. Not a common everyday word; more likely encountered in formal or bureaucratic contexts.
公庁の建物は駅の近くにある。
The government office building is near the station.
government and municipal offices; public agencies
Compound of 公 (public) and 庁 (government office). The exact historical derivation is uncertain, but the kanji directly suggest the meaning.