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

Floating through crystal-clear water before hiking silently through cathedral-like caverns was easily the highlight of my time in the Mexican Caribbean and a reminder that one of the region's greatest attractions lies well beyond the beach. — Condé Nast, Condé Nast Traveler, 4 Sep. 2026

At present, lithium-ion batteries excel at short-term electricity storage (hours), but hydrogen can be stored in large quantities in underground salt caverns for months, balancing seasonal swings in renewable energy production. — Mrigakshi Dixit, Interesting Engineering, 3 Sep. 2026

This cushion is required at the very top of the caverns to keep the extraction pipes safely submerged in oil rather than the underlying water. — Siddharth Misra, Fortune, 25 Aug. 2026