IPA: /rɪˈspɒndər/
KK: /rɪˈspɒndər/
A person who replies or reacts to something, especially in an emergency situation.
The responder arrived quickly to help those in need after the accident.
Responder → It is formed from "re-" (meaning again) and "spondere" (meaning to pledge or respond). The word "responder" means to pledge or reply again, typically in response to a question or request.
Think of someone 'replying' ('spondere') 'again' ('re-') — that's why responder means someone who replies.