The term scintillate is used to describe a bright, sparkling light or a brief moment of brilliance. It can be used to describe the way a diamond sparkles in the light or the way a person's wit can SHINE in conversation. The crossword solutions for scintillate include GLITTER, FLICKER, GLIMMER, GLISTEN, FLASH, SPARKLE, SHIMMER, twinkle, GLEAM, SHINE, and GLANCE, all of which are words that evoke images of light and brightness. Each of these words can be used to describe the same phenomenon, but they each have slightly different connotations. For example, GLITTER implies a more intense SPARKLE, while GLIMMER suggests a softer, more subtle light.