黑天 hēitiān night Definitions Defs Origin Strokes Stroke Words Sentences Sents hēitiān night 黑 hēi adjectiveverb dark lacking light; dim; night or nightfall天 tiān noun day a period of twenty-four hours; also used as a measurement for days or a specific time of dayhēitiān to get dark 黑 hēi adjectiveverb dark lacking light; dim; night or nightfall天 tiān noun weather weather; the state of the atmosphere at a place and time