*flash² n 1 [C] a sudden quick bright light 闪光: a flash of lightning 一道闪电 2 [C] a sudden idea or feeling 〔思想、感情的〕闪现: a flash of inspiration 灵感的闪现 3 [C,U] a bright light on a camera that you use to take photographs when there is not enough light 闪光灯 4 in a flash/like a flash very quickly 一刹那，立刻，马上: Wait right here. I'll be back in a flash. 就在这儿等，我马上回来。 5 a flash in the pan a sudden success that ends quickly 昙花一现