Possible Definitions:
1. Dusk (a.) Tending to darkness or blackness; moderately dark or black; dusky.
2. Dusk (n.) Imperfect obscurity; a middle degree between light and darkness; twilight; as, the dusk of the evening.
3. Dusk (n.) A darkish color.
4. Dusk (v. t.) To make dusk.
5. Dusk (v. i.) To grow dusk.