IPA: /ˈθʌndərər/
KK: /ˈθʌndərər/
A person or thing that makes a loud, rumbling noise, similar to thunder.
The thunderer in the sky announced the coming storm with a loud roar.
Thunderer → It is formed from "thunder" (from Old English "þunor", meaning a loud noise or rumble) and "-er" (meaning a person who). The word "thunderer" refers to a person or entity that produces thunder or a loud noise.
Think of someone who makes a loud noise like thunder — that's what a thunderer is.