Tunnel Definition

tŭnəl
tunneled, tunneling, tunnelled, tunnelling, tunnels
noun
tunnels
Wiktionary
A flue.
Webster's New World
A funnel.
Webster's New World
A passageway, as through a mountain or under a body of water, as for automotive or rail traffic.
Webster's New World
A tube-shaped structure.
American Heritage
Synonyms:
verb
tunneled, tunneling, tunnelled, tunnelling, tunnels
To dig (a passage) in the form of a tunnel.
Webster's New World
To make a tunnel through or under.
Webster's New World
To make a tunnel.
Webster's New World
To pass through a normally impassable barrier or insulator.
Electrons tunnel through semiconductors.
Webster's New World
To make (one's way) by digging a tunnel.
Webster's New World

Other Word Forms of Tunnel

Noun

Singular:
tunnel
Plural:
tunnels

Origin of Tunnel

  • Middle English tonel barrel, tubular net from Old French tonnel diminutive of tonne tun possibly of Celtic origin

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle French tonnelle.

    From Wiktionary

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