Dictionary

first responder

noun

Definition of FIRST RESPONDER

:  a person (as a police officer or an EMT) who is among those responsible for going immediately to the scene of an accident or emergency to provide assistance
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First Known Use of FIRST RESPONDER

1970
FIRST RESPONDER Defined for Kids

first responder

noun first re·spond·er \-ri-ˈspän-dər\

Definition of FIRST RESPONDER for Kids

:  a person (as a police officer or an EMT) who is responsible for going immediately to the scene of an accident or emergency to provide help

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