军官 (jūn guān): sĩ quan (quân sự)

That officer's order was very clear, and the soldiers immediately carried it out.

As an officer, he must be responsible for the safety of his subordinates.

After the war ended, this officer was awarded a medal.

The young officer performed outstandingly in training and was quickly promoted.

The officers are discussing the next step of the battle plan in the meeting room.