tunnel

a passageway through or under something, usually underground (especially one for trains or cars)

a hole made by an animal, usually for shelter

A vessel with a broad mouth at one end, a pipe or tube at the other, for conveying liquor, fluids, etc., into casks, bottles, or other vessels; a funnel.

move through by or as by digging

force a way through

To form into a tunnel, or funnel, or to form like a tunnel; as, to tunnel fibrous plants into nests.