The term DEN can refer to a variety of places, including a REFUGE (6 letters), HIDEAWAY (8 letters), COUCH (5 letters), CAVERN (6 letters), BURROW (6 letters), sanctum (7 letters), SNUGGERY (8 letters), SANCTUARY (9 letters), LIBRARY (7 letters), SHELTER (7 letters), RETREAT (7 letters), LODGE (5 letters), HOLLOW (6 letters), DWELLING (8 letters), HAUNT (5 letters), NEST (4 letters), CAVE (4 letters), STUDY (5 letters), LAIR (4 letters), MOM (3 letters), HOME (4 letters), OPIUM (5 letters), tvroom (6 letters), and recroom (7 letters). These places all provide a sense of safety and security, and are often used as a place to relax or hide away from the outside world.