Underground tunnels or holes dug by animals like rabbits or badgers; the plural form of burrow.
From Middle English 'burwe' and Old English 'byrgels,' meaning a shelter or hiding place. The spelling evolved over centuries, and Burroughs (capitalized) is also used as a surname, famously by author William S. Burroughs.
Burroughs as an animal shelter is why a group of rabbits living together is called a 'colony'—they literally share underground apartment complexes! The ground beneath your feet might be riddled with hundreds of these tiny highways.
Complete word intelligence in one call. Free tier — 50 lookups/day.