Respondee
Part of speech: noun
Definition: a person who responds
Respondent
Part of speech: noun
Definition: The person who answers for the defendant in a case before a court. In some legal systems, when one appeals a criminal case, one names the original court as defendant, but the state is the respondent.The person who responds to a letter sent to him. See also correspondent.The person who participates in research involving questionnaires. See also Survey