A well is an artificial excavation, hole or structure for the purpose of withdrawing an underground resource, usually water

Well may also refer to:

Structures

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Used for resource extraction

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  • Castle well, providing a protected source of drinking water
  • Oil well, a hole drilled through the Earth's surface for the purpose of extracting petroleum oil
  • Salt well, or brine well, used to mine salt
  • Well drainage of agricultural land by pumped wells

Other structures

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  • Air well (condenser), a structure or device designed to promote the condensation of atmospheric moisture
  • Clootie well, a place of pilgrimage in Celtic areas
  • Holy well, often pagan sacred sites that were later Christianized
  • Jacob's Well, of religious significance in the West Bank
  • Lightwell, in architecture, an unroofed space designed to allow sunlight to reach interior areas
  • Wishing well, a term from European folklore

Places

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Arts, entertainment, and media

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Music

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Other uses in arts, entertainment, and media

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Science and technology

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  • Well, the condition of having a high level of well-being
  • Well, good health
  • Gravity well or gravitational, a conceptual model of the gravitational field surrounding a body in space
  • Potential well, a concept used in physics related to kinetic energy
  • Quantum well, a potential well with only discrete energy values
  • Well, a microtiter plate, used in chemistry and biochemistry

Other uses

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See also

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