The noun dark has 5 senses (first 5 from tagged texts)
1. (9) dark, darkness -- (absence of light or illumination)
2. (5) iniquity, wickedness, darkness, dark -- (absence of moral or spiritual values; "the powers of darkness")
3. (4) darkness, dark, shadow -- (an unilluminated area; "he moved off into the darkness")
4. (3) night, nighttime, dark -- (the time after sunset and before sunrise while it is dark outside)
5. (2) dark, darkness -- (an unenlightened state; "he was in the dark concerning their intentions"; "his lectures dispelled the darkness")
Overview of adj dark
The adj dark has 11 senses (first 5 from tagged texts)
1. (50) dark -- (devoid of or deficient in light or brightness; shadowed or black; "sitting in a dark corner"; "a dark day"; "dark shadows"; "dark as the inside of a black cat")
2. (27) dark -- ((used of color) having a dark hue; "dark green"; "dark glasses"; "dark colors like wine red or navy blue")
3. (13) dark -- (brunet (used of hair or skin or eyes); "dark eyes")
4. (5) black, dark, sinister -- (stemming from evil characteristics or forces; wicked or dishonorable; "black deeds"; "a black lie"; "his black heart has concocted yet another black deed"; "Darth Vader of the dark side"; "a dark purpose"; "dark undercurrents of ethnic hostility"; "the scheme of some sinister intelligence bent on punishing him"-Thomas Hardy)
5. (5) blue, dark, depressing, dingy, disconsolate, dismal, dispiriting, gloomy, grim, sorry, drab, drear, dreary -- (causing dejection; "a blue day"; "the dark days of the war"; "a week of rainy depressing weather"; "a disconsolate winter landscape"; "the first dismal dispiriting days of November"; "a dark gloomy day"; "grim rainy weather")
6. dark -- (secret; "keep it dark")
7. dark, dour, glowering, glum, moody, morose, saturnine, sour, sullen -- (showing a brooding ill humor; "a dark scowl"; "the proverbially dour New England Puritan"; "a glum, hopeless shrug"; "he sat in moody silence"; "a morose and unsociable manner"; "a saturnine, almost misanthropic young genius"- Bruce Bliven; "a sour temper"; "a sullen crowd")
8. benighted, dark -- (lacking enlightenment or knowledge or culture; "this benighted country"; "benighted ages of barbarism and superstition"; "the dark ages"; "a dark age in the history of education")
9. dark, obscure -- (marked by difficulty of style or expression; "much that was dark is now quite clear to me"; "those who do not appreciate Kafka's work say his style is obscure")
10. colored, coloured, dark, dark-skinned, non-white -- (having skin rich in melanin pigments; "National Association for the Advancement of Colored People"; "the dark races"; "dark-skinned peoples")
11. dark -- (not giving performances; closed; "the theater is dark on Mondays")