Meaning

noun the habitation of wild animals

noun a hiding place; usually a remote place used by outlaws

noun a unit of 8 to 10 cub scouts

originFrom Middle English den, from Old English denn (“den, lair (of a beast), cave; a swine-pasture, a woodland pasture for swine”), from Proto-West Germanic *dani (“threshing-floor, barn-floor”). Cognate with Scots den (“den, lair”), Middle Dutch denne (“burrow, den, cave, attic”), Dutch den (“ship's deck, threshing-floor, mountain floor”), Middle Low German denne, danne (“threshing-floor, small…

Etymology from Wiktionary, CC BY-SA 3.0