bivouac

US /ˈbɪv.u.æk/
UK /ˈbɪv.u.æk/
1.

bivouac

a temporary shelter or camp for sleeping in outside, that is not a tent:

:
The children made a bivouac at the bottom of the garden with some poles and an old blanket.
1.

bivouac

to camp (= sleep) in a bivouac:

:
The soldiers bivouacked in the mountains for two nights.