as in cave
a passage that goes under the ground, through a hill, etc.
The train goes through a tunnel in the mountain. The moles dug tunnels in the yard.
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Recent Examples of tunnel
These spirit tunnels can go viral but also be very awkward.
—
Andy Hoglund, Entertainment Weekly, 9 Nov. 2025
Pore space creates essential tunnels for nutrients, water, and oxygen to move in the soil, further fortifying the roots and boosting plant growth.
—Megan Hughes, Better Homes & Gardens, 8 Nov. 2025
According to those citations, many employees have been burned by the chemicals in the liquid that pools up in Boring’s tunnels.
—Dave Smith, Fortune, 8 Nov. 2025
Goldin’s remains, according to two Israeli sources, are likely held in Rafah in southern Gaza near an area where up to 200 Hamas militants are hiding in underground tunnels in territory occupied by Israeli forces.
—Oren Liebermann, CNN Money, 7 Nov. 2025
See All Example Sentences for tunnel
Andy Hoglund, Entertainment Weekly, 9 Nov. 2025
Pore space creates essential tunnels for nutrients, water, and oxygen to move in the soil, further fortifying the roots and boosting plant growth.
—Megan Hughes, Better Homes & Gardens, 8 Nov. 2025
According to those citations, many employees have been burned by the chemicals in the liquid that pools up in Boring’s tunnels.
—Dave Smith, Fortune, 8 Nov. 2025
Goldin’s remains, according to two Israeli sources, are likely held in Rafah in southern Gaza near an area where up to 200 Hamas militants are hiding in underground tunnels in territory occupied by Israeli forces.
—Oren Liebermann, CNN Money, 7 Nov. 2025
See All Example Sentences for tunnel
Recent Examples of Synonyms for tunnel
Noun
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The mid-century offered more literal interpretations of cave living, from The Flintstones (1960) to the villainous Bond lair, often hidden within or carved into cliffs.—
Leonora Epstein,
Architectural Digest,
7 Nov. 2025
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However, the successful samples have largely been collected from dark caves or other cold and stable environments where DNA is preserved particularly well.—
Katie Hunt,
CNN Money,
7 Nov. 2025
Noun
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The sulfur-rich stream, fed by natural springs and winds through the cavern, releases hydrogen sulfide that sustains this unexpected chain of life.—
Alice Gibbs,
MSNBC Newsweek,
5 Nov. 2025
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This cavern, known as Sulfur Cave, houses a chemoautotrophic ecosystem sustained not by sunlight but chemosynthesis – or the process of converting chemical energy into organic matter.—
New Atlas,
New Atlas,
5 Nov. 2025
Noun
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The video is enacting the viewpoint of the city itself on October 4th, the night that Ebba and Zema, dressed in dark, anonymizing colors, hoisted their small bodies onto the roof of a subway car, where they were later found, lifeless, at the Marcy Avenue station.—
Doreen St. Félix,
New Yorker,
8 Nov. 2025
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The bathroom is finished with bright subway tile, a full-sized vanity, and a vessel sink with space for essentials on the counter.—
Caley Sturgill,
Southern Living,
7 Nov. 2025
Cite this Entry
“Tunnel.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tunnel. Accessed 14 Nov. 2025.
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