DEN

[noun] [C] - the home of particular types of wild animalA den is also a rough structure built esp. outside, usually from pieces of wood, cardboard, etc., in which children play.(esp. US) A den is also a room in a house or apartment, which is used for activities not involving work.The kids are watching television in the den.A den is also a place where immoral or illegal activities happen secretly.a den of thievesa den of iniquitya vice den