Definition of 'tunnel'

Noun

1. a passageway through or under something, usually underground (especially one for trains or cars); "the tunnel reduced congestion at that intersection"
2. a hole in the ground made by an animal for shelter
      Synonyms: burrow

Verb

1. move through by or as by digging; "burrow through the forest"
      Synonyms: burrow
2. force a way through

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