青靛 qīngdiàn indigo Definitions Defs Origin Strokes Stroke Words Sentences Sents qīngdiàn indigo · indigo (medicine) 青 qīng noun blue blue; the color of the clear sky, as in 青天 qīngtiān靛 diàn indigo indigo pigment; the dark blue dye traditionally made from the leaves of the indigo plantqīngdiàn deep green water 青 qīng noun green greenish; the color of grass or young crops靛 diàn indigo blue the color indigo; a deep blue color between blue and violet in the spectrum