den
1. den \'den\ n [ME, fr. OE denn; akin to OE denu valley, OHG tenni threshing] floor, Gk thenar palm of the hand 1: the lair of a wild usu. predatory animal 2a1: a hollow or cavern used esp. as a hideout 2a2: a center of secret activity 2b: a small usu. squalid dwelling 3: a comfortable usu. secluded room 2. den vb or denned; or den.ning : to live in or retire to a den : to drive into a den