den
n. countable B2 Upper Intermediate US //ˈdɛn// UK //dˈɛn// den
n. a hidden or private place where a wild animal lives. People also use this word for a quiet room in a house where you can relax or work alone.
n. the lair or shelter of a wild animal, especially a predatory mammal. Also used to describe a private, secluded room in a residence intended for relaxation or informal study.
The bear spent the winter sleeping in its den.
He spent the rainy afternoon in his den, surrounded by books and old records.
Wildlife photographers spent weeks tracking the wolves to their den, hoping to capture footage of the cubs emerging for the first time.
Shortening.
Usage
Commonly used to describe the homes of bears, lions, or foxes; in a domestic context, it implies a sense of privacy and comfort.