Questioners are individuals who ask questions to obtain information or to clarify something. Synonyms of questioners include interrogators, inquirers, and interviewers. An interrogator is someone who asks questions to obtain information from a person suspected of committing a crime or to extract relevant information from a witness. An inquirer is someone who asks questions to gain knowledge or to clarify a particular matter. An interviewer is a person who poses inquiries to gather information for employment or research purposes. Additionally, some other synonyms of questioners include quizzer, examiner, and tester, and all of them can be used interchangeably based on the context of the situation.