- an act or instance of illuminating.
- the fact or condition of being illuminated.
- a decoration of lights, usually colored lights.
- Sometimes illuminations. an entertainment, display, or celebration using lights as a major feature or decoration.
- intellectual or spiritual enlightenment.
- Also called illuminance, intensity of illumination. Optics. the intensity of light falling at a given place on a lighted surface; the luminous flux incident per unit area, expressed in lumens per unit of area.
- a supply of light: a source of illumination.
- decoration of a manuscript or book with a painted design in color, gold, etc.
- a design used in such decoration.
Origin of illumination
SynonymsSee more synonyms for on Thesaurus.com
Examples from the Web for illumination
The book is fascinating partly for its illumination of the origins of current conventions.How the News Business Found Its Footing
June 22, 2014
Rather than selective filtering for purposes of justification, information is instead used as the fuel for illumination.What Hockey Players Can Teach our Toothless Politicians
April 29, 2014
Consider the opening of the first illumination, “After the Flood:”When Your Hero’s an SOB
August 1, 2011
Here are five of my favorite moments of illumination from the book.Cheap Therapy
March 21, 2011
The Leopard Woman stood just within the circle of illumination.
By experiment he found that at a distance of a foot or so the illumination registered.
Yet perhaps it was the illumination which gave so gloomy a cast to Amalia's features.Casanova's Homecoming
The illumination had seemed brilliant, now suddenly it was pale and dim.Two Thousand Miles Below
Charles Willard Diffin
Then, with a brazil nut candle for illumination, he began to write.
- the act of illuminating or the state of being illuminated
- a source of light
- (often plural) mainly British a light or lights, esp coloured lights, used as decoration in streets, parks, etc
- spiritual or intellectual enlightenment; insight or understanding
- the act of making understood; clarification
- decoration in colours, gold, or silver used on some manuscripts or printed works
- physics another name (not in technical usage) for illuminance
Word Origin and History for illumination
late 14c., "spiritual enlightenment," from Latin illuminationem (nominative illuminatio), from past participle stem of illuminare "to throw into light, make bright, light up;" figuratively "to set off, illustrate," from assimilated form of in- "in, into" (see in- (2)) + lumen (genitive luminis) "light," related to lucere "to shine" (see light (n.)). Meaning "action of lighting" is from 1560s.