the color of coal or ink; opposite of 白 bái

lacking light; dim; night or nightfall

sinister; vicious; heartless; cruel

to hide something away; to vilify someone; (slang) to hack a computer or account

secret or covert; illegal; unregulated as in a black market

to be greedy; to extort or illegally pocket money

abbreviation for 黑龙江 hēi​lóng​jiāng province

the family name Hei

interjection used to call for attention or express surprise; hey