Perhaps it's something to do with being the only civil department still with the power to send in a gunboat.

At the beginning, football, athletics and tennis were the club's only three departments.

Why should corrections be the only department that gets an increase, and a significant one at that?

It is the only French department whose name comes from the Breton language.

We're not the only department concerned with the Oracle.

He said slowly, 'We aren't the only department on line with this computer.

It is the only department with an error in punctuation built into its name.

"This is the only department which would suit me," he said to Werdet.

It is the only department of Haiti that does not border the sea.

Its the only department in the upper level of the colony.