detention vs liberty

detention

noun
  • The bare physical control without the mental element of intention required for possession. 

  • The act of detaining or the state of being detained. 

  • Confinement of a prisoner awaiting trial. 

  • A punishment given to a student for a minor infraction, typically requiring the student to report to a designated room during recess or outside of school hours to work on homework or perform busywork. 

liberty

noun
  • A short period when a sailor is allowed ashore. 

  • A breach of social convention. 

  • The condition of being free to act, believe or express oneself as one chooses. 

  • A local division of government administration in medieval England. 

  • The condition of being free from control or restrictions. 

  • Freedom from excessive government control. 

  • The condition of being free from imprisonment, slavery or forced labour. 

  • An empty space next to a group of stones of the same color. 

How often have the words detention and liberty occurred in a corpus of books? (source: Google Ngram Viewer )