The crossword solution for the term 'BRILLIANCE' is 'ECLAT'. ECLAT is a French word meaning 'SPLENDOR' or 'BRILLIANCE'. It is often used to describe a sudden burst of fame or success. In literature, it is used to describe a moment of BRILLIANCE or excellence. In music, it is used to describe a passage of great beauty or power. In art, it is used to describe a work of art that stands out from the rest. In general, ECLAT is used to describe something that is exceptionally brilliant or outstanding.