home office

noun

1. the main office of a company.

2. (initial capital letters),  the governmental department in Great Britain dealing with domestic matters, as elections, naturalization, and the control of police.

3. a work or office space set up in a person's home and used exclusively for business on a regular basis.

Home Office

noun

1. government the national department responsible for the maintenance of law and order, immigration control, and all other domestic affairs not specifically assigned to another department