Noun
1. a seat for one person, with a support for the back;
"he put his coat over the back of the chair and sat down"2. the position of professor;
"he was awarded an endowed chair in economics"3. the officer who presides at the meetings of an organization;
"address your remarks to the chairperson"4. an instrument of execution by electrocution; resembles a chair;
"the murderer was sentenced to die in the chair"