To earnestly appeal to or advise; to charge solemnly.
To issue a formal command.
(also call upon) To have recourse to.
To visit (a person); to pay a call to.
To correct; to point out an error or untruth.
(also call upon) To request or ask something of (a person); to select for a task.
To select (a student in a classroom, etc.) to provide an answer.