Thunder in the context of "Phobia"

A natural phenomenon is an observable event which is not man-made. Examples include: sunrise, weather, fog, thunder, tornadoes; biological processes, decomposition, germination; physical processes, wave propagation, erosion; tidal flow, and natural disasters such as electromagnetic pulses, volcanic eruptions, hurricanes and earthquakes.

A weather god or goddess, also frequently known as a storm god or goddess, is a deity in mythology associated with weather phenomena such as thunder, snow, lightning, rain, wind, storms, tornadoes, and hurricanes. Should they only be in charge of one feature of a storm, they will be called after that attribute, such as a rain god or a lightning/thunder god. This singular attribute might then be emphasized more than the generic, all-encompassing term "storm god", though with thunder/lightning gods, the two terms seem interchangeable. They feature commonly in polytheistic religions, especially in Proto-Indo-European ones.

Storm gods are most often conceived of as wielding thunder and/or lightning (some lightning gods' names actually mean "thunder", but since one cannot have thunder without lightning, they presumably wielded both). The ancients didn't seem to differentiate between the two, which is presumably why both the words "lightning bolt" and "thunderbolt" exist despite being synonyms. Of the examples currently listed storm themed deities are more frequently depicted as male, but both male and female storm or other rain, wind, or weather deities are described.

Polytheistic peoples from many cultures have postulated a thunder deity, the creator or personification of the forces of thunder and lightning; a lightning god does not have a typical depiction and will vary based on the culture.

In Indo-European cultures, the thunder god is frequently depicted as male and known as the chief or King of the Gods, e.g.: Indra in Hinduism, Zeus in Greek mythology, Zojz in Albanian mythology, and Perun in ancient Slavic religion.

A thunderbolt, or lightning bolt, is a symbolic representation of lightning. It appears variously in history, literature, and in contemporary warnings of (typically high-voltage) electricity. Thunderbolts may appear naturally among the estimated 8.6 million lightning strikes per day or not: heat lightning is an electrical discharge in the atmosphere without an accompanying sound, and a Tesla coil produces an artificial "lightning"-like electrical discharge with an accompanying clap. The term "thunderbolt" adds the notion of a loud thunderclap accompanying a lightning flash, while the term "lightning bolt" — which refers directly to the electrical discharge — does not.

In Indo-European mythology, the thunderbolt was identified with the 'Sky Father'; this association is also found in later Hellenic representations of Zeus and Vedic descriptions of the vajra wielded by the god Indra. It may have been a symbol of cosmic order, as expressed in the fragment from Heraclitus describing "the Thunderbolt that steers the course of all things".

A sign is an object, quality, event, or entity whose presence or occurrence indicates the probable presence or occurrence of something else. A natural sign bears a causal relation to its object—for instance, thunder is a sign of storm, or medical symptoms a sign of disease. A conventional sign signifies by agreement, as a full stop signifies the end of a sentence; similarly the words and expressions of a language, as well as bodily gestures, can be regarded as signs, expressing particular meanings. The physical objects most commonly referred to as signs (notices, road signs, etc., collectively known as signage) generally inform or instruct using written text, symbols, pictures or a combination of these.

The philosophical study of signs and symbols is called semiotics; this includes the study of semiosis, which is the way in which signs (in the semiotic sense) operate.

Baltic Finnic paganism, or Baltic Finnic polytheism was the indigenous religion of the various Baltic Finnic peoples, specifically the Finns, Estonians, Võros, Setos, Karelians, Veps, Izhorians, Votes and Livonians, prior to Christianisation. It was a polytheistic religion, worshipping a number of different deities. The chief deity was the god of thunder and the sky, Ukko; other important deities included Jumala, Ahti, and Tapio. Jumala was a sky god; today, the word "Jumala" refers to a monotheistic God. Ahti was a god of the sea, waters and fish. Tapio was the god of the forest and hunting.

Baltic Finnic paganism included necrolatry (worship of the dead) and shamanism (tietäjä(t), literally "one who knows"), and the religion was not always uniform across the areas it was practiced, as customs and beliefs varied during different periods of time and regions. Baltic Finnic paganism shares some features with its neighbouring Baltic, Norse and Germanic pagan beliefs.