Synonyms of cavern

cavern

noun

ˈka-vərn 

as in cave

a naturally formed underground chamber with an opening to the surface

a cavern with beautiful stalactites

Synonyms & Similar Words

• cave
• grotto
• tunnel
• abyss
• pit
• lair
• grot
• chasm
• hollow
• delve
• antre
• bunker
• excavation
• mine
• burrow
• shaft
• gallery
• subway
• crawlway
• shelter
• hole
• well
• gulf
• den
• lodge
• dugout
• foxhole
• covert

Example Sentences

Recent Examples of cavern

The former approach builds geological repositories by blasting and digging massive underground tunnels, shafts, and caverns. — Muskan Bhatia, Interesting Engineering, 30 Oct. 2026

Energy Secretary Chris Wright has warned that drawing the reserve down too far could damage the salt caverns where the oil is stored. — Heather Occhino, Fortune, 12 Oct. 2026

While many have described the halls of the Colorado Convention Center as windowless caverns, Levitt Pavilion will offer more of a music festival vibe — and an atmosphere much more akin to other Colorado beer festivals. — Jonathan Shikes, Denver Post, 5 Oct. 2026

After lingering over spaghetti alle vongole at Ristorante Lido Azzurro, which hovers over the sea near Amalfi’s harbor, zip around the coast to sea caverns and grottos, pausing for dips in secluded spots away from the crowds. — Lane Nieset, Condé Nast Traveler, 25 Sep. 2026