[den] n [ME, fr. OE denn; akin to OE denu valley, OHG tenni threshing floor] (bef. 12c) 1: the lair of a wild usu. predatory animal
2. a (1): a hollow or cavern used esp. as a hideout (2): a center of secret activity b: a small usu. squalid dwelling
3: a comfortable usu. secluded room
4: a subdivision of a Cub Scout pack made up of two or more boys
[2]den vb denned ; den.ning vi (13c): to live in or retire to a den ~ vt: to drive into a den