burrow
n. countable B2 Upper Intermediate US //ˈbɝoʊ// UK //bˈʌɹəʊ// bur·row
n. a hole or tunnel in the ground that an animal, like a rabbit, makes to live in.
n. a hole or tunnel excavated into the ground by an animal to serve as a dwelling or refuge.
The rabbit disappeared into its burrow.
During the heat of the day, many desert animals stay deep inside a cool burrow to save energy.
The complex network of the badger's burrow, known as a sett, can remain in use by successive generations for several decades.
Usage
Often used with the verb 'to dig' or 'to inhabit'.