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Classic usage
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
Unadapted borrowing from French bivouac (earlier biouac, bivac), from Alemannic German Biiwacht (“reinforcements of guard or town watch”), from bii- + Wacht (“watch, guard”).
camp, encampment, cantonment
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Classic usage
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