1. a person who searches through something hastily or carelessly, especially to steal
2. a person who uses a rifle; a marksman

Examples

• The rifler went through every drawer looking for valuables.
• Police caught the rifler searching through parked cars.
• She was an expert rifler who could hit targets at great distances.
• The military trained each rifler in precision shooting.
• The burglar was a notorious rifler of hotel rooms.
• As the best rifler in the unit, he was chosen for the mission.