warren

US /ˈwɔːr.ən/
UK /ˈwɔːr.ən/
"warren" picture
1.

a network of interconnecting rabbit burrows

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The rabbits disappeared into their warren.
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We found a large warren of rabbits near the forest.
:
burrowlairdennesthole
2.

a densely populated or labyrinthine building or district

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The old city was a warren of narrow streets and crowded buildings.
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He got lost in the warren of corridors in the old hospital.
:
labyrinthmazetanglenetworkweb