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

  • n. Fiery intensity of feeling. See Synonyms at passion.
  • n. Strong enthusiasm or devotion; zeal: "The dazzling conquest of Mexico gave a new impulse to the ardor of discovery” ( William Hickling Prescott).
  • n. Intense heat or glow, as of fire.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Great warmth of feeling; fervor; passion.
  • n. Spirit.
  • n.  Intense heat.

from the GNU version of the Collaborative International Dictionary of English

  • n. Heat, in a literal sense.
  • n. Warmth or heat of passion or affection; eagerness; zeal
  • n. Bright and effulgent spirits; seraphim.

from The Century Dictionary and Cyclopedia

  • n. Intense heat: as, the ardor of the sun's rays.
  • n. In pathology, a feeling of heat or burning.
  • n. A bright or effulgent spirit.
  • n. Warmth or heat, as of the passions and affections; eagerness; intensity.
  • n. Synonyms Fervor, fervency, vehemence, intensity, impetuosity.

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

  • n. intense feeling of love
  • n. a feeling of strong eagerness (usually in favor of a person or cause)
  • n. feelings of great warmth and intensity


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

Middle English ardour, from Old French, from Latin ārdor, from ārdēre, to burn; see as- in Indo-European roots.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Anglo-Norman ardour, from Latin ardor, from ardere ("to burn").



Log in or sign up to get involved in the conversation. It's quick and easy.

  • I was surprised by his religious ardor, for he spoke as if fighting an army, but controlled as if holding a child. His ardor proclaimed his dominance, and he was never to be questioned again. He sleeps now, his ardor restrained, but it fights against the chains as the sun races his spirit to reach the beginning of a new day.

    March 20, 2011

  • "He'd seen me kill her, right in front of his eyes. Granted, she'd betrayed and tortured him, and that should have doused his ardor, right there." -Club Dead, by Charlaine Harris

    February 5, 2011