noun
- a person who responds or replies to something
- a person who reacts to an emergency situation, especially a trained professional
- a person who participates in a survey, study, or research by providing answers
Usage: research context
Examples
- The survey had over 500 responders from different age groups.
- First responders arrived at the accident scene within minutes.
- She was the only responder to the job posting that day.
- Emergency responders worked through the night to help victims.
- The researcher analyzed data from all survey responders.
- Police and fire responders coordinated their rescue efforts.
- Each responder in the study received a small payment for participation.