to handle official business (usu. in an office); to do (office) work

Businesses often have a list of 5-10 'mission statements' featured in their brochures, on their websites or hanging in their office detailing the values they hold as a form of communication to their employees, their clients and the public.

Are there any books under the desk?

I went home and Bill stayed at the office.

The door of the office is yellow.

He left the office in great haste.