chair
noun.
a seat for one person, with a support for the back
he put his coat over the back of the chair and sat down
noun.
the position of professor
he was awarded an endowed chair in economics
Synonym: professorship
noun.
the officer who presides at the meetings of an organization
address your remarks to the chairperson
noun.
an instrument of execution by electrocution; resembles an ordinary seat for one person
the murderer was sentenced to die in the chair
noun.
a particular seat in an orchestra
he is second chair violin
verb.
act or preside as chair, as of an academic department in a university
She chaired the department for many years
Synonym: chairman
verb.
preside over
John moderated the discussion
Synonym: lead, moderate