— Also termed chairman (of a male chair, in senses 1 & 3); chairwoman (of a female chair, in senses 1 & 3); chairperson (in senses 1 & 3); moderator (in sense 1); president (in senses 1 & 3); presiding officer (in sense 1); speaker (in sense 1). — chair,vb.
chair
Parliamentary law. 1. A deliberative assembly’s presiding officer [the chair calls for order]. See PRESIDE. 2. The presiding officer’s seat [take the chair].3. The officer who heads an organization [the treasurer reports directly to the chair].