Definition of thunder

• n. - The sound which follows a flash of lightning; the report of a discharge of atmospheric electricity.
• n. - The discharge of electricity; a thunderbolt.
• n. - Any loud noise; as, the thunder of cannon.
• n. - An alarming or statrling threat or denunciation.
• n. - To produce thunder; to sound, rattle, or roar, as a discharge of atmospheric electricity; -- often used impersonally; as, it thundered continuously.
• n. - Fig.: To make a loud noise; esp. a heavy sound, of some continuance.
• n. - To utter violent denunciation.
• v. t. - To emit with noise and terror; to utter vehemently; to publish, as a threat or denunciation.