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

Smith would later learn that Cello had made his way into a badger’s den — called a sett — and became lost in the underground network of tunnels. — Charlotte Phillipp, PEOPLE, 14 Sep. 2026

Some of the mansions even come with private tunnels running under A1A, allowing residents to reach their docks without emerging to cross the two-lane road. — Miami Herald, 11 Sep. 2026

Even robotaxis today do not operate everywhere—in snow, tunnels, and every possible condition. — Fortune Editors, Fortune, 10 Sep. 2026

Search teams have occasionally found surviving workers trapped in hydropower tunnels after the floodwaters ripped through both operational hydropower plants and sites under construction. — Jeremy Hsu, ArsTechnica, 10 Sep. 2026

With the bridges and tunnels closed, getting a crew to the studio was a challenge. — Los Angeles Times, 10 Sep. 2026

Christophe Gateau | Picture Alliance | Getty Images Between taking SpaceX public in the largest IPO on record and rolling out a fleet of driverless Tesla Cybercabs in Austin, Texas, Elon Musk has also been digging tunnels. — Lora Kolodny,ari Levy, CNBC, 10 Sep. 2026

The mystic whine of Christine Ott and Mathieu Gabry’s score carries us into a hidden world of ancient Thai deities living inside the mountain’s caves and tunnels. — Beatrice Loayza, Variety, 9 Sep. 2026