Definition of "illumination" in English

noun

1. The act of illuminating, or supplying with light; the state of being illuminated.

   • The room was filled with soft illumination from the candles.
   • Streetlights provide illumination at night.

2. Festive decoration of houses or buildings with lights.

3. Adornment of books and manuscripts with colored illustrations. See illuminate (transitive verb).

4. (figurative) Splendour; brightness.

5. (figurative) Enlightening influence; inspiration.

   • The philosopher’s work gave intellectual illumination to many.