Term: spying: the act of keeping a secret watch for intelligence purposes
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: apprehension: fearful expectation or anticipation
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: roadster: an open automobile having a front seat and a rumble seat
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: starship: a spacecraft designed to carry a crew into interstellar space (especially in science fiction)
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: heptagon: a seven-sided polygon
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: low beam: the beam of a car's headlights that provides illumination for a short distance
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: divarication: branching at a wide angle
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: game: (tennis) a division of play during which one player serves
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: carbon paper: a thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: indonesian monetary unit: monetary unit in Indonesia
Broader: operation: activity by a military or naval force (as a maneuver or campaign) | Unrelated: challenge: a formal objection to the selection of a particular person as a juror