Tunnel (Noun)
Meaning 1
A hole made by an animal, usually for shelter.
Classification
Nouns denoting natural objects (not man-made).
Synonyms
Hypernyms
Hyponyms
Related Words
Meaning 2
A passageway through or under something, usually underground (especially one for trains or cars); "the tunnel reduced congestion at that intersection".
Classification
Nouns denoting man-made objects.