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from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The state of being wakeful.

from The Century Dictionary and Cyclopedia

  • n. The state or character of being wakeful; especially, indisposition or inability to sleep.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a temporary state in which you are unable (or unwilling) to sleep
  • n. the process of paying close and continuous attention
  • n. a periodic state during which you are conscious and aware of the world


wakeful +‎ -ness (Wiktionary)



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