Source : WordNet®

denning
     See {den}

den
     n 1: the habitation of wild animals [syn: {lair}]
     2: a hiding place; usually a remote place used by outlaws [syn:
         {hideout}, {hideaway}]
     3: a unit of 8 to 10 cub scouts
     4: a room that is comfortable and secluded
     [also: {denning}, {denned}]