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One of several lights on a vehicle, such as a ship, turned on between dusk and dawn to indicate position and size.
(Nautical Terms) nautical one of several white, red, or green lights displayed by vessels operating at night
any of various lights displayed by a vessel or aircraft operating at night.
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|Noun||1.||running light - light carried by a boat that indicates the boat's direction; vessels at night carry a red light on the port bow and a green light on the starboard bow|