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16:18 ·
Two structures, both basic gestalts in Western ideography, are combined in this ideogram. The graph for danger, heat, energy,  , is combined with the arrow sign  , which stands for directed movement. It is the Western world's most common ideogram for lightning, thunderstorm, and high voltage electric current. It is also a general sign for mythology in some dictionaries, and for the field or subject of electricity in other contexts.
When it appears in a photographic context (e.g. on cameras), it signifies flashlight or flash bulb.
Turned upside down,  , it is used to indicate television station on certain maps. Compare with  , radio station, on some maps.
As a sign for lightning it is rather synonymous with the ancient sign  , the staff of Zeus or Jupiter, depicting a bundle of lightnings symbolizing divine power.
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