Webster's Revised Unabridged Dictionary · 1913

Thunder

Thunder , noun

[Old English þunder, þonder, þoner, Anglo-Saxon þunor; akin to þunian to stretch, to thunder, Dutch donder thunder, German donner, Old High German donar, Icelandic þōrr Thor, Latin tonare to thunder, tonitrus thunder, Greek to`nos a stretching, straining, Sanskrit tan to stretch. r52. See Thin, and compare Astonish, Detonate, Intone, Thursday, Tone.]

1.
The sound which follows a flash of lightning; the report of a discharge of atmospheric electricity.
2.
The discharge of electricity; a thunderbolt. [Obsolete]
The revenging gods 'Gainst parricides did all their thunders bend. — Shakespeare
3.
Any loud noise; as, the thunder of cannon.
4.
An alarming or statrling threat or denunciation.
The thunders of the Vatican could no longer strike into the heart of princes. — Prescott
Collocations (4)
Thunder pumper (Zoology) , (a) The croaker (Haploidontus grunniens). (b) The American bittern or stake-driver.
Thunder rod , a lightning rod. [Rare]
Thunder snake (Zoology) , (a) The chicken, or milk, snake. (b) A small reddish ground snake (Carphophis amoena syn. Celuta amoena) native to the Eastern United States; -- called also worm snake.
Thunder tube , a fulgurite. See Fulgurite.

Thunder , intransitive verb

[Anglo-Saxon þunrian. See Thunder, n.]

1.
To produce thunder; to sound, rattle, or roar, as a discharge of atmospheric electricity; -- often used impersonally; as, it thundered continuously.
Canst thou thunder with a voice like him? — Job xl. 9
2.
Figuratively: To make a loud noise; esp. a heavy sound, of some continuance.
His dreadful voice no more Would thunder in my ears. — Milton
3.
To utter violent denunciation.

Thunder , transitive verb

To emit with noise and terror; to utter vehemently; to publish, as a threat or denunciation.
Oracles severe Were daily thundered in our general's ear. — Dryden
An archdeacon, as being a prelate, may thunder out an ecclesiastical censure. — Ayliffe