1. Lit up or made bright: This is the most common meaning of "illumined." It refers to something being brightly lit, either by natural light (like the sun) or artificial light (like a lamp).
* Example: "The room was illuminated by the soft glow of the fireplace."
2. Enlightened or inspired: This meaning relates to the inner light of understanding and wisdom. It suggests a state of being intellectually or spiritually enlightened.
* Example: "The philosopher's teachings illuminated my understanding of the world."
3. Decorated with gold or silver: This meaning is specific to art and bookmaking. "Illumined manuscripts" are medieval texts decorated with intricate illustrations and designs using gold and silver leaf.
* Example: "The Book of Kells is an incredibly beautiful example of an illuminated manuscript."
4. Emphasized or highlighted: This meaning is less common but still valid. It suggests something being made more visible or prominent.
* Example: "The speaker illuminated the key points of the presentation with vivid examples."
In summary, "illuminated" can refer to the act of lighting something up, gaining spiritual or intellectual insight, or emphasizing something. The specific meaning depends on the context.