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

The sprawling network, which could date as far back as the 8th century BCE, descends roughly 280 feet, housing everything from stables and kitchens to rock-cut churches and escape tunnels. — Maya Chawla, Architectural Digest, 12 Oct. 2026

During the 1920s and 1930s, the United States and Canada built bridges and tunnels to boost economic exchanges. — Robert B. Zoellick, Foreign Affairs, 9 Oct. 2026

The ‘Beautiful Six’ By August 2024, Israeli troops had spent months advancing through Rafah and were concentrating on the tunnels under the Tel Al-Sultan neighborhood, where Hamas commanders were believed to be hiding. — Jeremy Diamond, CNN Money, 8 Oct. 2026

In the early stages of infestation, these trees are only identifiable by sawdust at their base, sap on the trunk, or tunnels under the bark. — Jennifer Oldham, Denver Post, 8 Oct. 2026

In August, his wife, Rivka, gave birth to a daughter, fulfilling his promise to himself in the tunnels to give his 5-year-old son, Reem, a sibling. — Melanie Lidman, Los Angeles Times, 7 Oct. 2026

These tunnels will be designed to capture that overflow and serve as massive holding tanks, with the wastewater gradually being treated at ALCOSAN's treatment plant as capacity becomes available. — Andy Sheehan, CBS News, 7 Oct. 2026

Traditional secure email gateways and web proxies rely on inspecting SMTP traffic or forcing browser sessions through corporate network tunnels. — Firas Azmeh, Forbes.com, 5 Oct. 2026

All flaggers are now required to reach their jobsites by hitching a ride on a nearby subway instead of walking through the tunnels, according to a service bulletin sent Monday to all subway staff and obtained by the Daily News. — Evan Simko-Bednarski, New York Daily News, 24 Sep. 2026