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Noun: thunder  thún-du(r)
  1. A deep prolonged loud noise
    - boom, roar, roaring
  2. A booming or crashing noise caused by air expanding along the path of a bolt of lightning
  3. [slang] A street name for heroin
    - big H [slang], hell dust [slang], nose drops [slang], smack [slang], skag [slang], scag [slang]
Verb: thunder  thún-du(r)
  1. Move fast, noisily, and heavily
    "The bus thundered down the road"
  2. Utter words loudly and forcefully
    "'Get out of here,' he thundered";
    - roar
  3. Be the case that thunder is being heard
    "Whenever it thunders, my dog crawls under the bed";
    - boom
  4. To make or produce a loud noise
    "The river thundered below"

Derived forms: thundered, thundering, thunders

Type of: diacetylmorphine, diamorphine, heroin, howl, junk [informal], move, noise, roar, shout

Encyclopedia: Thunder, Lightning and Sunshine