dark Definition in the Cambridge English Dictionary
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Definition of “dark” - English Dictionary

Definition of "dark" - American English Dictionary

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darkadjective [-er/-est only]

 us   /dɑrk/

dark adjective [-er/-est only] (WITHOUT LIGHT)

with little or no ​light, or having little ​brightness: It was too dark to ​see much of anything. What ​time does it get dark in the ​summer? Dark ​colors have less ​white in them: a dark ​bluedress dark ​hair/​eyes

dark adjective [-er/-est only] (SAD)

unhappy or ​sad; gloomy : The ​reportcontains dark predictions about the ​future.

dark adjective [-er/-est only] (EVIL)

evil or ​threatening: He gave me a dark ​look when I ​criticized his ​work.
darkness
noun [U]  us   /ˈdɑrk·nəs/
The ​city was ​plunged into darkness by the ​powerblackout.

darknoun [U]

 us   /dɑrk/

dark noun [U] (ABSENCE OF LIGHT)

the ​absence of ​light: Does ​eatingcarrots really ​help you to ​see in the dark? She ​arrivedhome well before/after dark (= before/after the ​sun had gone down).
(Definition of dark from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "dark" - British English Dictionary

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darkadjective

uk   /dɑːk/  us   /dɑːrk/

dark adjective (WITHOUT LIGHT)

A2 with little or no ​light: It was too dark to ​see much. What ​time does it get dark in the ​summer? Our ​bedroom was very dark until we put a ​largerwindow in.A1 nearer to ​black than ​white in ​colour: dark ​blue/​green dark ​clouds She has dark ​hair. He was ​tall, dark (= with ​black/​brownhair) and ​handsome.
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dark adjective (SAD)

C1 [before noun] sad and without ​hope: Her husband's ​suddendeath was the ​start of a dark ​chapter in her ​life. This ​environmentalreportcontains more dark ​predictions about the ​future of the ​earth.

dark adjective (EVIL)

C1 evil or ​threatening: There's a darker ​side to his ​character.

dark adjective (SECRET)

UK secret or ​hidden: I've just been ​promoted, but keep it dark - I don't ​want everyone to ​know just ​yet.
darkness
noun [U] uk   us   /-nəs/
More examples
B2 The ​citycentre was plunged into darkness by the ​powercut.

darknoun

uk   /dɑːk/  us   /dɑːrk/
the dark
More examples
B1 the ​fact of there being no ​lightsomewhere: Cats can ​see in the dark. I've always been ​afraid of the dark.
before/after dark B1 before/after the ​sun has gone down: It isn't ​safe to ​leave the ​house after dark. I ​want to be ​home before dark.
(Definition of dark from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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