To give off sparks. To give off or reflect flashes of light; glitter. See Synonyms at flash. To be brilliant in performance. To shine with animation: He has eyes that sparkle. To flash with wit: Her conversation sparkled all evening. To release gas bubbles; effervesce: Champagne sparkles. To cause to flash and glitter: Sunlight was sparkling the waves. A small spark or gleaming particle. A glittering quality. Brilliant animation; vivacity. Emission of gas bubbles; effervescence.