A bivouac shelter is a temporary encampment or shelter, usually consisting of a TENT, tarp, or other material. It is often used by military personnel, hikers, and campers. The crossword solutions for the term bivouac shelter are TENT (4 letters), TENTS (5 letters), COT (3 letters), and CAMP (4 letters). A TENT is a shelter made of canvas or other material supported by poles and ropes, while a COT is a portable bed. Camping is the activity of spending time outdoors in a temporary shelter.