"detention" in the noun sense
1. detention, detainment, hold, custody
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"
a punishment in which a student must stay at school after others have gone home
"the detention of tardy pupils"
Source: WordNet® (An amazing lexical database of English)
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