tunnel

1 of 2

noun

tun·​nel ˈtə-nᵊl How to pronounce tunnel (audio)
1
a
: a covered passageway
specifically : a horizontal passageway through or under an obstruction
b
: a subterranean gallery (as in a mine)
c
: burrow
2
: a hollow conduit or recess : tube, well
tunnellike adjective

tunnel

2 of 2

verb

tunneled or tunnelled; tunneling or tunnelling
ˈtən-liŋ,
ˈtə-nᵊl-iŋ How to pronounce tunnel (audio)

intransitive verb

1
: to make or use a tunnel
2
physics : to pass through a potential barrier
electrons tunneling through an insulator between semiconductors

transitive verb

: to make a tunnel or similar opening through or under
also : to make (one's way) by or as if by making a tunnel
tunneler
ˈtən-lər
ˈtə-nᵊl-ər How to pronounce tunnel (audio)
noun

Examples of tunnel in a Sentence

Noun The train goes through a tunnel in the mountain. The moles dug tunnels in the yard. Verb Workers are tunneling through the hill. Insects had tunneled into the tree.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
After an impressive collegiate career at Stanford, the WNBA rookie with the Los Angeles Sparks has become known for her bold pre-game tunnel looks, redefining the intersection of sports and style. Ty Gaskins, WWD, 18 Nov. 2024 There will be carve-outs for low-income workers, a discount on tunnel tolls, and a steep markdown overnight (all of which were on the old plan, too). Nolan Hicks, Curbed, 14 Nov. 2024
Verb
The idea is that this would create an extra layer of protection by tunneling one secure connection through another. Alex Vakulov, Forbes, 22 Oct. 2024 The plant is host to an insect called the leaf miner which tunnels through foliage. Kim Toscano, Southern Living, 3 Oct. 2024 See all Example Sentences for tunnel 

Word History

Etymology

Noun

Middle English tonel cask, tun, from Anglo-French, from tone tun

First Known Use

Noun

1508, in the meaning defined at sense 2

Verb

1795, in the meaning defined at intransitive sense 1

Time Traveler
The first known use of tunnel was in 1508

Dictionary Entries Near tunnel

Cite this Entry

“Tunnel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tunnel. Accessed 23 Nov. 2024.

Kids Definition

tunnel

1 of 2 noun
tun·​nel ˈtən-ᵊl How to pronounce tunnel (audio)
: a passage under the ground
tunnellike adjective

tunnel

2 of 2 verb
tunneled or tunnelled; tunneling or tunnelling
ˈtən-liŋ,
-ᵊl-iŋ
: to make a tunnel

Medical Definition

tunnel

noun
tun·​nel ˈtən-ᵊl How to pronounce tunnel (audio)
: a bodily channel see carpal tunnel
Last Updated: - Updated example sentences
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