bivouac

Từ điển Oxford Advanced Learner 8th

biv·ouac [bivouac bivouacs bivouacked bivouacking] noun, verb BrE [ˈbɪvuæk] NAmE [ˈbɪvuæk]
noun
a temporary camp or shelter, without using a tent, that is made and used especially by people climbing mountains or by soldiers

Word Origin:
early 18th cent. (denoting a night watch by the whole army): from French, probably from Swiss German Bîwacht ‘additional guard at night’, apparently denoting a citizens' patrol supporting the ordinary town watch.
 
verb (-ck-)intransitive
to spend the night in a ↑bivouac
Verb forms:

Word Origin:
early 18th cent. (denoting a night watch by the whole army): from French, probably from Swiss German Bîwacht ‘additional guard at night’, apparently denoting a citizens' patrol supporting the ordinary town watch.
 

• Từ đồng nghĩa / Synonyms:
  campsite, campground, camping site, camping ground, encampment, camping area, camp, cantonment, encamp, camp out, tent