an appearance that has been spoiled or is misshapen; "there were distinguishing disfigurements on the suspect's back"; "suffering from facial disfiguration"
a punishment in which a student must stay at school after others have gone home; "the detention of tardy pupils"
a state of being confined (usually for a short time); "his detention was politically motivated"; "the prisoner is on hold"; "he is in the custody of police"