Definition of "dark" []

  • Lacking or having very little light: a dark corner. (adjective)
  • Lacking brightness: a dark day. (adjective)
  • Reflecting only a small fraction of incident light. (adjective)
  • Of a shade tending toward black in comparison with other shades. Used of a color. (adjective)
  • Having a complexion that is not fair; swarthy. (adjective)
  • Having little or no light (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • (of a colour) reflecting or transmitting little light (adjective)
  • (of complexion, hair colour, etc) not fair or blond; swarthy; brunette (adjective)
  • (in combination) (adjective)
  • Gloomy or dismal (adjective)
  • Sinister; evil (adjective)
  • Sullen or angry (adjective)
  • Ignorant or unenlightened (adjective)
  • Secret or mysterious (adjective)
  • Denoting an (l) pronounced with a velar articulation giving back vowel resonance. In English, l is usually dark when final or preconsonantal (adjective)
  • Absence of light; darkness (noun)
  • Night or nightfall (noun)
  • A dark place, patch, or shadow (noun)
  • A state of ignorance (esp in the phrase in the dark) (noun) (c) HarperCollins Publishers Ltd 2016

Use "dark" in a sentence
  • "~ Measuring the unseeable: Researchers probe proteins' 'dark energy' -- Researchers at the University of Pennsylvania School of Medicine are the first to observe and measure the internal motion inside proteins, or its “dark energy."
  • "He would feel and cry out to her, 'Let me tell you alone, if I must tell it, and _in the dark, in the dark_!' when he could not see the heart-breaking shame grow upon her face, nor see his own guilty face reflected in her eyes."
  • "Or when the substances are consumed _as solids_, then the spectral effects are reversed, and the lines that would be dark lines in the luminous colored spectrum become themselves luminous lines on the screen; but these lines hold the same relation in mathematical measurement, etc., as do the _dark_ lines in the colored spectrum."