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Definitions of tunnel
  1. verb
    move through by or as by digging

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  2. noun
    a hole made by an animal, usually for shelter

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    type of:
  3. noun
    a passageway through or under something, usually underground (especially one for trains or cars)
    "the tunnel reduced congestion at that intersection"
    type of:
  4. verb
    force a way through
    type of:
Parts of tunnel
  • "shaft"
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