【flashing light】 —a lighting device, used in lighthouses, etc., giving forth sudden flashes:

• Another change has been the displacement of the semaphore-type of direction indicator by 【flashing light】 signals.

【flashlight】 —

1. = 【flashing light】 :

• The practice of a 【flashlight】 on sails as something approaches in the darkness is a good one.

2. (also: flash-lamp) a portable electric lamp:

• Barry examined them by the same pencil 【flashlight】 —a tiny streak of illumination.

3. an intense flash of light produced in cameras:

• The paranormal displacement of a handkerchief actuated electrically the 【flashlight】 by which this photograph was taken.