Meaning of TUNNEL in English

TUNNEL

■ noun

1》 an artificial underground passage, as built through a hill or under a building or by a burrowing animal.

2》 a poly~.

■ verb ( ~s , ~ling , ~led ; US ~s , ~ing , ~ed )

1》 dig or force a passage underground or through something.

2》 Physics (of a particle) pass through a potential barrier.

Derivatives

~ler noun

Origin

ME (in the senses '~-shaped net' and 'flue of a chimney'): from OFr. tonel , dimin. of tonne 'cask'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.