See fervor in Webster's New World Roget's A-Z Thesaurus II
noun
Powerful, intense emotion:
ardor, fervency, fire, passion. See feelingsPassionate devotion to or interest in a cause or subject, for example:
ardor, enthusiasm, fire, passion, zeal, zealousness. See concern, feelingsIntense warmth:
heat, hotness, torridity, torridness. See hot
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