tunnel
US /ˈtʌnəl/
・UK /'tʌnl/
B1
adjective
- As if looking in a long hole
noun
- Passage under the ground, often for cars or trains
- An underground passage.
- An underground passageway, especially one built for vehicles or trains.
verb
- To dig a hole from one side to another
other
- To make a tunnel.
other
- To dig a tunnel through something.