Adornment of books and manuscripts with colored illustrations. See illuminate (transitive verb).
Festive decoration of houses or buildings with lights.
Enlightening influence; inspiration.
The act of illuminating, or supplying with light; the state of being illuminated.
Splendour; brightness.
The state or quality of being opaque, not allowing light to pass through
The state or quality of being inaccessible to understanding.
A measure of relative impenetrability to electromagnetic radiation such as light.