Definition:-

• A separate seat for one person, typically with a back and four legs. (noun)
• The person in charge of a meeting or of an organization (used as a neutral alternative to chairman or chairwoman) (noun)
• A professorship. (noun)
• A metal socket holding a rail in place on a railway sleeper. (noun)
• Act as chairperson of or preside over (an organization, meeting, or public event) (verb)
• Carry (someone) aloft in a chair or in a sitting position to celebrate a victory. (verb)