thunder meaning and definition

THUNDER noun

Definition of thunder (noun)

1. a deep prolonged loud noise
   • synonyms: boom, roar, roaring
2. a booming or crashing noise caused by air expanding along the path of a bolt of lightning
3. street names for heroin
   • synonyms: big H, hell dust, nose drops, scag, skag, smack

THUNDER verb

Definition of thunder (verb)

1. move fast, noisily, and heavily
   • "The bus thundered down the road"
2. utter words loudly and forcefully
   • "`Get out of here,' he roared"
   • synonyms: roar
3. be the case that thunder is being heard
   • "Whenever it thunders, my dog crawls under the bed"
   • synonyms: boom
4. to make or produce a loud noise
   • "The river thundered below"; "The engine roared as the driver pushed the car to full throttle"