本部は英語で
headquarters

英語の定義

本部
1. n. headquarters
2. n. Usage: * Often used in the context of Martial arts (denoting the main school).

headquarters
1. n. The military installation from which troops are commanded and orders are issued; the military unit consisting of a commander and his support staff.
2. n. The center of an organization's operations or administration.
3. n. A place of concentrated activity or influence.

head office
1. 名詞. 本社。本店。

head office
1. n. The main administrative centre for a company or organisation.