den

US /den/
UK /den/
"den" picture
1.

the lair or resting place of a wild animal

:
The bear retreated to its den for the winter.
We found a fox's den near the river.
2.

a small, comfortable room, typically one in a house, used for studying, reading, or relaxing

:
He spent the evening reading in his cozy den.
The children often play games in the family den.
1.

to live in or use as a den

:
The foxes den in the abandoned badger sett.
The family of badgers has been denning in this area for years.