camping vs encampment

camping

noun
  • The act of setting up a camp. 

  • The recreational activity of temporarily living in a tent or similar accommodation, usually in the wilderness. 

encampment

noun
  • A campsite. 

  • A group of temporary living quarters and/or other temporary structures. 

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