illumination

Illumination is light. Kids up past their bedtimes have been known to read entire books under their covers using only the illumination from a flashlight.

Use the noun illumination to talk about light, like the illumination of the moon on the surface of a lake. Illumination can also refer to an understanding or a spiritual awareness, like when a mystery of your faith suddenly makes sense to you. The Latin root is illuminationem, "throw into light" — you can picture the light bulb over a person's head in a cartoon to remember the various meaning of illumination.

Definitions of illumination
  1. noun
    the luminous flux incident on a unit area
    synonyms: illuminance
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    type of:
    brightness, brightness level, light, luminance, luminosity, luminousness
    the quality of being luminous; emitting or reflecting light
  2. noun
    the degree of visibility of your environment
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    types:
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    light, lighting
    having abundant light or illumination
    dark, darkness
    absence of light or illumination
    night
    darkness
    black, blackness, lightlessness, pitch blackness, total darkness
    total absence of light
    blackout, brownout, dimout
    darkness resulting from the extinction of lights (as in a city invisible to enemy aircraft)
    semidarkness
    partial darkness
    type of:
    state
    the way something is with respect to its main attributes
  3. noun
    an interpretation that removes obstacles to understanding
    synonyms: clarification, elucidation
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    types:
    disambiguation
    clarification that follows from the removal of ambiguity
    lexical disambiguation
    disambiguation of the sense of a polysemantic word
    type of:
    interpretation
    an explanation that results from interpreting something
  4. noun
    painting or drawing included in a book (especially in illuminated medieval manuscripts)
    synonyms: miniature
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    type of:
    painting, picture
    graphic art consisting of an artistic composition made by applying paints to a surface
  5. noun
    a condition of spiritual awareness; divine illumination
    synonyms: light
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    type of:
    condition, status
    a state at a particular time
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