chair

nouns

a seat for one person, with a support for the back

"he put his coat over the back of the chair and sat down"

chair

is a type of (narrower)

furniture that is designed for sitting on

"there were not enough seats for all the guests"

the position of professor

"he was awarded an endowed chair in economics"

chair, professorship

the officer who presides at the meetings of an organization

"address your remarks to the chairperson"

chair, chairman, chairperson, chairwoman, president

an instrument of execution by electrocution; resembles an ordinary seat for one person

"the murderer was sentenced to die in the chair"

a particular seat in an orchestra

"he is second chair violin"

chair

is a type of (narrower)

any support where you can sit (especially the part of a chair or bench etc. on which you sit)

"he dusted off the seat before sitting down"

act or preside as chair, as of an academic department in a university

"She chaired the department for many years"

chair, chairman

preside over

"John moderated the discussion"

chair, lead, moderate