1. a person who poses or puts forward a question or problem
Usage: archaic or formal
2. a person who appoints or assigns someone to a position or task
Usage: rare; archaic

Examples

• The apposer of the riddle waited for the contestant to answer.
• In medieval universities, the apposer would examine students on their knowledge.
• The apposer presented a difficult philosophical question to the assembly.
• As the apposer of the challenge, she had the authority to judge the responses.