noun / verb
burrow
BUR-oh/bˈɝoʊ/
To dig or push into an enclosed space.
The rabbit can burrow through the soil to extend its tunnel.

Etymology
The “stronghold” connection places an animal’s burrow in the same word family as borough. Here the protected dwelling is an underground refuge rather than a fortified human settlement.
In context
hemp, big aspen flakes and carefresh often may not hold tunnels as well as others and can collapse when the hamster is trying to make a burrow
More examples
- A fox waited near the entrance to the burrow.
- She burrowed deeper beneath the warm blankets.
- The worms were burrowing through the damp soil.
Forms
burrow · burrows · burrowed · burrowing
Similar words
- tunnel
- Can be any passage, while a burrow commonly serves as an animal's shelter.