Synonyms of tunnels

tunnels

noun

plural of tunnel

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.

Related Words

• caves
• caverns
• subways
• grottoes
• pits
• galleries
• holes
• mines
• chasms
• abysses
• excavations
• hollows
• bunkers
• crawlways
• wells
• shafts
• grots
• burrows
• antres
• delves
• shelters
• foxholes
• dugouts
• dens
• gulfs
• lairs
• coverts
• lodges

Example Sentences

Recent Examples of tunnels

In 2020 Iran began digging tunnels 300-plus feet below Pickaxe Mountain to replace the centrifuge assembly facility that was damaged at Natanz, according to the Institute for Science and International Security. — Stephanie Pappas, Scientific American, 23 July 2026

When the remnants of Ida hit in 2021, more than 3 inches of rain fell in just one hour, setting a record and causing the stormwater system to back up into basements, subway tunnels, sewers and drains, and turning streets into rivers. — Andrew Freedman, CNN Money, 23 July 2026

Night rides are ideal, but logistics around the park’s fireworks show can make that a challenge, and for me, the ride’s many dark tunnels more than suffice for a ride just about any time of day. — Zachary Laks, Travel + Leisure, 22 July 2026

For a long time, our leading hypothesis was bullying and violence, but that may be a bit impractical, given their kingdoms are vast networks of tunnels that can stretch for up to three kilometers. — Jacek Krywko, ArsTechnica, 21 July 2026

Israeli officials said that their military used the two-thousand-pound bombs to destroy fortified tunnels, and although there are less indiscriminate ways to accomplish that objective, Republicans pounced. — David D. Kirkpatrick, New Yorker, 20 July 2026

Moles dig tunnels year-round in search of food, disrupting lawns and drying out grass. — Arricca Elin Sansone, Southern Living, 20 July 2026

In Berlin, dive back in time by touring an underground World War II bunker or escape tunnels dug in the 1960s between East and West Berlin. — The New York Times News Service Syndicate, San Diego Union-Tribune, 16 July 2026

Between the beds, tunnels of bent cattle fencing provide room for the crops to climb. — Stephen Orr, Better Homes & Gardens, 14 July 2026