An example of a den is a bear cave.
An example of a den is where you would have books and a nice chair for reading in your house.
A den of thieves.
Origin of den
- Middle English from Old English denn
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English den, from Old English denn (“den, lair (of a beast), cave; a swine-pasture, a woodland pasture for swine”), from Proto-Germanic *danjō (“threshing-floor, barn-floor”), from Proto-Indo-European *dʰen- (“flat surface, board, sheet, area, palm of the hand”). Cognate with Scots den (“den, lair”), Dutch denne (“burrow, den, cave, attic”), Dutch den (“ship's deck, threshing-floor, mountain floor”), Middle Low German denne, danne (“threshing-floor, small dale”), German Tenne (“threshing-floor”).