from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An evil spirit; a demon.
  • noun The Devil; Satan.
  • noun A diabolically evil or wicked person.
  • noun Informal One who is addicted to something.
  • noun Informal One who is completely absorbed in or obsessed with a given job or pastime.
  • noun Informal One who is particularly adept at something.
  • intransitive verb To crave (a drug, for example).
  • intransitive verb To have an intense desire for something.

from The Century Dictionary.

  • noun An enemy; a foe.
  • noun Specifically, the enemy of mankind; Satan; the devil.
  • noun Hence, in a general sense, a devil; a demon; a malignant or diabolical being; an evil spirit.
  • noun An exceedingly wicked, cruel, spiteful, or destructive person: as, a dynamite fiend; a fire fiend.
  • noun A person who gives great annoyance; a persistent bore: as, the newspaper fiend; the hand-organ fiend.
  • noun Synonyms See devil.

from the GNU version of the Collaborative International Dictionary of English.

  • noun An implacable or malicious foe; one who is diabolically wicked or cruel; an infernal being; -- applied specifically to the devil or a demon.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A demon
  • noun A very evil person
  • noun informal An addict

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

  • noun a cruel wicked and inhuman person
  • noun an evil supernatural being
  • noun a person motivated by irrational enthusiasm (as for a cause)


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English, from Old English fēond; see pē(i)- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English feend ("enemy, demon"), from Old English fēond ("enemy"). Cognate with Old Norse fjándi (Danish fjende, Swedish fiende), German Feind, Gothic 𐍆𐌹𐌾𐌰𐌽𐌳𐍃 (fijands), all of them meaning foe. The Old Norse and Gothic terms are present participles of the corresponding verbs fjá/fijan, to hate. Akin to Sanskrit पियति (piyati, "(he) reviles").


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