as in caves
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 tunnels
In the tunnels, the excitement was equally high.
—
Andrew Greif,
NBC news,
20 June 2026
Exciting infrastructure plans are afoot in Europe also, as a number of audacious underground mega tunnels are redrawing the railway map of the continent.
—
Maureen O'Hare,
CNN Money,
20 June 2026
At the bottom was a cellar consisting of three brick tunnels with low barrelled ceilings, measuring no more than about fifty feet by thirty, that today would be instantly condemned as a multi-deathtrap.
—
Andy Greene,
Rolling Stone,
18 June 2026
Set the spout near the ant hills and run the water for a few minutes until water starts to flood and collapse the tunnels and force the ants out.
—
Karen Brewer Grossman,
Southern Living,
18 June 2026
The footage shows men and women with bags over their heads, chained to the wall in the underground tunnels, looking not that dissimilar from detainees at Abu Ghraib.
—
Jen Chaney,
Vulture,
17 June 2026
The caterpillar bores into the stem through a tiny hole and tunnels inside the plant destroying tissue.
—
Mary Marlowe Leverette,
The Spruce,
17 June 2026
It’s promised to deliver a network of high-speed transit — with plans to also make tunnels in Dubai and Nashville.
—
Los Angeles Times,
13 June 2026
It's promised to deliver a network of high speed transit — with plans to also make tunnels in Dubai and Nashville.
—
ABC News,
12 June 2026
Andrew Greif,
NBC news,
20 June 2026
Exciting infrastructure plans are afoot in Europe also, as a number of audacious underground mega tunnels are redrawing the railway map of the continent.
—
Maureen O'Hare,
CNN Money,
20 June 2026
At the bottom was a cellar consisting of three brick tunnels with low barrelled ceilings, measuring no more than about fifty feet by thirty, that today would be instantly condemned as a multi-deathtrap.
—
Andy Greene,
Rolling Stone,
18 June 2026
Set the spout near the ant hills and run the water for a few minutes until water starts to flood and collapse the tunnels and force the ants out.
—
Karen Brewer Grossman,
Southern Living,
18 June 2026
The footage shows men and women with bags over their heads, chained to the wall in the underground tunnels, looking not that dissimilar from detainees at Abu Ghraib.
—
Jen Chaney,
Vulture,
17 June 2026
The caterpillar bores into the stem through a tiny hole and tunnels inside the plant destroying tissue.
—
Mary Marlowe Leverette,
The Spruce,
17 June 2026
It’s promised to deliver a network of high-speed transit — with plans to also make tunnels in Dubai and Nashville.
—
Los Angeles Times,
13 June 2026
It's promised to deliver a network of high speed transit — with plans to also make tunnels in Dubai and Nashville.
—
ABC News,
12 June 2026
Recent Examples of Synonyms for tunnels
Noun
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On the one hand, caves are humanity’s oldest architecture.
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The lice live in dry caves and feed predominantly on bat guano.
Noun
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There is a parallel track in Sanders’s life; one that leads towards the deep caverns of the manosphere.
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Moaning Caverns and Calaveras cave tours Calaveras County's caverns offer guided underground tours, dramatic cave formations and a cooler alternative on hot summer days.
Cite this Entry
“Tunnels.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/tunnels. Accessed 26 Jun. 2026.
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