To gain sight of; to discover at a distance, or in a state of concealment; to espy; to see.
To discover by close search or examination.
To explore; to view, inspect, and examine secretly, as a country; - usually with out.
To search narrowly; to scrutinize.
One who keeps a constant watch of the conduct of others.
A person sent secretly into an enemy’s camp, territory, or fortifications, to inspect his works, ascertain his strength, movements, or designs, and to communicate such intelligence to the proper officer.
Fitted for, or skilled in, detecting; employed in detecting crime or criminals; as, a detective officer.
One who business it is so detect criminals or discover matters of secrecy.