Responder

//ɹɪˈspɒndə// noun

Definitions

Noun
  1. 1
    One who responds.

    "As Levinson (1983: 334) points out, signs of dispreference in turn taking include: (a) Delays: notably a pause, or a time gap, before the responder replies to the preceding turn […]"

  2. 2
    someone who responds wordnet
  3. 3
    A person who responds to an emergency situation or other summons.

    "911 responders arrived at the scene within five minutes after the call."

Etymology

From respond + -er.

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