To serve as chairman.
The head of a corporate or governmental board of directors, a committee, or other formal entity.
Someone whose job is to carry people in a portable chair, sedan chair, or similar conveyance.
A person presiding over a meeting.
To act as a flagship for.
The most important one out of a related group.
The ship occupied by the fleet's commander (usually an admiral); it denotes this by flying his flag.
The ship regarded as most important out of a group, e.g. a nation's navy or company's fleet.