To stand in presence of some authority, tribunal, or superior person, to answer a charge, plead a cause, or the like; to present one's self as a party or advocate before a court, or as a person to be tried.
present oneself formally, as before a (judicial) authority; "He had to appear in court last month"; "She appeared on several charges of theft"
Show up at the time scheduled for a hearing, trial, or deposition, or, in the case of a defendant, to file an answer or other document with the court in response to the plaintiff s complaint.