noun / verb
thunder
THUN-dur/ˈθʌndər/
A loud rolling sound produced by lightning.
The adult covers both ears as thunder rumbles from the dark cloud.

Etymology
Old English þunor named both thunder and the god Thor. The shared word connects the storm’s resounding noise with its divine personification.
In context
I heard a little thunder earlier and again this is not somewhere up here that you want to be when the thunder and lightning decides to roll in
More examples
- We hear thunder a few seconds after the lightning flashes.
- It thunders all afternoon, but little rain falls.
- Heavy trucks thunder past our house.
Forms
thunder · thunders · thundered · thundering
thunderous adjective — Very loud and deep, like thunder.