Verb
The word is derived from tunnel
of Tunnel
Source: Webster's dictionaryI seem to enjoy telling stories with a central absence, with a lacuna tunnelled into them. Junot Diaz
The machines on the Zealand side tunnelled through difficult ground and made little progress. Source: Internet
They had learned the tactics of street fighting and simply tunnelled through the walls of houses to outflank the Communards' barricades. Source: Internet
This procedure may be performed by leaving the donor tissue connected to the original site to retain its blood supply (the vessels are tunnelled beneath the skin surface to the new site) or it may be cut off and new blood supply may be connected. Source: Internet
Unable to remove these stones, however, the workmen tunnelled up beside them through the softer limestone of the Pyramid until they reached the Ascending Passage. Source: Internet