"chairs" in the noun sense
1. chair
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. professorship, chair
the position of professor
"he was awarded an endowed chair in economics"
3. president, chairman, chairwoman, chair, chairperson
the officer who presides at the meetings of an organization
"address your remarks to the chairperson"
4. electric chair, chair, death chair, hot seat
an instrument of execution by electrocution resembles an ordinary seat for one person
"the murderer was sentenced to die in the chair"
5. chair
a particular seat in an orchestra
"he is second chair violin"
"chairs" in the verb sense
1. chair, chairman
act or preside as chair, as of an academic department in a university
"She chaired the department for many years"
2. moderate, chair, lead
preside over
"John moderated the discussion"
Source: WordNet® (An amazing lexical database of English)
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