Definitions of respondent
a person who answers a question or questionnaire (eg an opinion poll)
On average across all countries, respondents had 17 online friends.
the answering party to a petition for a court order
The respondent had registered the contested domain name in order to divert consumers to the respondent's web site in a way that was misleading and illegitimate.
the party in an appeal case against whom the appeal is brought
The respondent admitted that he had been convicted of a relevant offence.