1. noun /ˈθʌn.də,ˈθʌn.dɚ/
a) The sound caused by the discharge of atmospheric electrical charge.
Thunder is preceded by lightning.
b) A sound resembling thunder.
Off in the distance, he heard the thunder of hoofbeats, signalling a stampede.
2. verb /ˈθʌn.də,ˈθʌn.dɚ/
a) To make a noise like thunder.
"Get back to work at once!", he thundered.
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