Pronunciation AHD: /thŭn'dər/ IPA: /ˈθʌndə(r)/ SAMPA: /"TVnd@(r)/ Etymology Anglo-Saxon thunor Noun The sound caused by the discharge of atmospheric electrical charge. ("Thunder is preceded by lightning.") A sound resembling thunder. ("The noise he thought was thunder turned out to be the rattle of a sheet of aluminum, struck by trees.") A deep, rumbling noise ("Off in the distance, he heard the thunder of hoofbeats, signalling a stampede.") Translations Breton: kurun f, taran m Dutch: donder m Esperanto: tondro French: tonnerre m German: Donner Guaraní: sunu Indonesian: gelegar, suara petir, suara halilintar Interlingua: tonitro Japanese: 雷鳴 (らいめい, raimei) Polish: grzmot m Portuguese: trovão m Swedish: åska Tupinambá: tupã sununga Verb to thunder (Inflected forms: thundered, thundering, thunders) to make a noise like thunder. to talk with a loud, threatening voice. Translations Breton: ober kurun (1), taranal / taraniñ (1,2) Dutch: donderen (1), overdonderen (2) Esperanto: tondri French: tonner (1), déblatérer (2), foudroyer German: donnern Guaraní: sunu Indonesian: gelegar Interlingua: tonar Polish: zagrzmieć perf, grzmieć imperf Portuguese: troar, trovejar Tupinambá: sunung
