Synonyms of the word

responder

• n. A person that responds to an emergency situation or other calling.

answerer

• n. A person or thing that answers or responds.

communicator

• n. Someone who, or something that communicates.
• n. Any of several electronic devices that allow people with various disabilities to communicate via displays…

respondent

• n. (law) person who answers for the defendant in a case before a court. In some legal systems, when one appeals…
• n. One who responds. See also correspondent.
• n. Person replying to a questionnaire.
• adj. Disposed or expected to respond; answering; according; corresponding.