I need to visit the land office to inquire about property regulations.

Running a bakery during the holiday season is a land-office business.

I left my bag at the luggage office.

The president held a meeting in the Oval Office.

He filed a patent application at the patent office.

I brought her a bouquet of flowers as a peace offering .

The petty officer is responsible for maintaining discipline among the crew.

The petty officer first class is responsible for supervising and training junior enlisted personnel.

The petty officer second class is responsible for training and supervising junior enlisted personnel.

He was promoted to petty officer third class.