1.To make light; to throw light on; to supply with light, literally or figuratively; to brighten.
2.To light up; to decorate with artificial lights, as a building or city, in token of rejoicing or respect.
3.To adorn, as a book or page with borders, initial letters, or miniature pictures in colors and gold, as was done in manuscripts of the Middle Ages.
4.To make plain or clear; to dispel the obscurity to by knowledge or reason; to explain; to elucidate; as, to illuminate a text, a problem, or a duty.
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