Donald wrote:Yeah what the drokk even is a tunnel?

what is a hill also while we're at it.
Tunnel
noun
1. An artificial underground passage, especially one built through a hill or under a building, road, or river:
a road tunnel through the Pyrenees
the Mersey tunnel
[as modifier]:
the tunnel mouth
an underground passage dug by a burrowing animal.
a passage in a sports stadium by which players enter or leave the field:
he jogged off the field and into the tunnel
2. Short for wind tunnel.
3. A long, half-cylindrical enclosure used to protect plants, made of clear plastic stretched over hoops:
cover plants in rows with a cloche tunnel
verb (tunnels, tunnelling, tunnelled; US tunnels, tunneling, tunneled)
1. [No object, with adverbial of direction] dig or force a passage underground or through something:
he tunnelled under the fence
(tunnel one's way)
the insect tunnels its way out of the plant
2. [No object] Physics (of a particle) pass through a potential barrier.
Hill
noun
a naturally raised area of land, not as high or craggy as a mountain.
a sloping stretch of road:
they were climbing a steep hill in low gear
a heap or mound of something:
a hill of sliding shingle
verb
[with object]
form (something) into a heap.
bank up (a plant) with soil:
if frost threatens our new plants, we hill them up