Senses
黑道 underworld
The criminal underworld; secret criminal organizations or gangs
黑道 dark road
An unlit road or path at night; also referred to as 黑路 .
黑道 inauspicious day
(literary) An unlucky or inauspicious day according to traditional superstition.
黑道 black streak
A black line or streak, such as a mark on a wall.
黑道 path to knowledge
The path to knowledge or a certain philosophical way as seen in certain classical contexts
黑道 illegal methods
Illegal activities, ways, or means