The time just after sunset, when the light is half-faded, but the world is not yet totally dark, is twilight . If you are between two states, like asleep and awake, that can also be called a twilight moment. TWILIGHT meaning : 1 : the light from the sky at the end of the day when night is just beginning; 2 : the period when day is ending and night is beginning often used before another noun TWILIGHT meaning : 1. the period just before it becomes completely dark in the evening: 2. the final part of a…. Learn more. Twilight is the diffused light from the sky when the sun is below the horizon, or the period of time before or after sunrise or sunset. It can also mean a state of decline, obscurity, or ambiguity. See different sources and synonyms for twilight .