war ‧ ren /ˈwɒrən $ ˈwɔː-, ˈwɑː-/ BrE AmE noun [countable]
[ Date: 1300-1400 ; Language: Old North French ; Origin: warenne ]
1 . the underground home of rabbits
2 . a place with so many streets, rooms etc that it is difficult to find the place that you want:
a warren of tiny streets