The loud rumbling, cracking, or crashing sound caused by expansion of rapidly heated air around a lightning bolt. / A deep, rumbling noise resembling thunder.

(impersonal) To produce thunder; to sound, rattle, or roar, as a discharge of atmospheric electricity. / (intransitive) To make a noise like thunder.

present participle of thunder

Of, pertaining to, or accompanied by thunder. / Producing a noise or effect like thunder; thunderous. / (colloquial) Very great; extraordinary.

A loud percussive sound, like thunder. / (archaic) A thunderstorm.

Very loud; that sounds like thunder; thundersome. Also in metaphorical expressions, signifying fury.

plural of thunder

Third-person singular simple present indicative form of thunder

simple past tense and past participle of thunder

(US, colloquial) An exclamation of surprise, agitation or petulance.