Noun illumination has 5 senses
  1. light, illumination - a condition of spiritual awareness; divine illumination; "follow God's light"
    --1 is a kind of condition, status
  2. illumination - the degree of visibility of your environment
    --2 is a kind of
    --2 has particulars: light, lighting; dark, darkness
    Derived form: verb illuminate1
  3. clarification, elucidation, illumination - an interpretation that removes obstacles to understanding; "the professor's clarification helped her to understand the textbook"
    --3 is a kind of interpretation
    --3 has particulars: disambiguation
    Derived form: verb illuminate2
  4. illuminance, illumination - the luminous flux incident on a unit area
    --4 is a kind of luminosity, brightness, brightness level, luminance, luminousness, light
    Derived form: verb illuminate1
  5. miniature, illumination - painting or drawing included in a book (especially in illuminated medieval manuscripts)
    --5 is a kind of painting, picture
    Derived form: verb illuminate3