Symposiarch refers to a person who is responsible for organizing a symposium or a banquet. However, there are multiple synonyms available for this term, including "banquet master," "head of feast," "presiding officer," and "leader of gathering." Some other synonyms for symposiarch are "convener," "chairperson," "facilitator," and "host." These terms are often used interchangeably to refer to the individual who is in charge of a gathering or an event. While the synonyms for symposiarch vary, they all convey the importance of the role in orchestrating an event and ensuring that things run smoothly.