9 Grammatical Pitfalls


[kav-ern] /ˈkæv ərn/
a cave, especially one that is large and mostly underground.
Pathology. a cavity that is produced by disease, especially one produced in the lungs by tuberculosis.
verb (used with object)
to enclose in or as if in a cavern.
to hollow out to form a cavern.
Origin of cavern
1325-75; Middle English caverne < Latin caverna, equivalent to cav(us) hollow + -erna, as in cisterna cistern Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for cavern
  • My bad, the former thread has moved back in its cavern my apologies.
  • Only a small portion of the cavern has been explored so far.
  • During off-peak times, electricity runs a compressor which pumps the air down into the cavern.
  • Excavation revealed a giant limestone cavern beneath the fortress.
  • The ring light is shadow-less so you could see in that cavern.
  • One concept is to pump compressed air into an underground cavern.
  • Engineers flushed the domes with water to dissolve the salt, then pumped out the brine to create a nicely sealed cavern.
  • Inside an immense three-story cavern known as the currency vault, the truck's next cargo was made ready for shipment.
  • Each cavern must reserve a minimum gas volume that serves to support the structure.
  • To form a salt cavern, the well operator pumps fresh water through one of the pipes.
British Dictionary definitions for cavern


a cave, esp when large and formed by underground water, or a large chamber in a cave
verb (transitive)
to shut in or as if in a cavern
to hollow out
Word Origin
C14: from Old French caverne, from Latin caverna, from cavus hollow; see cave1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for cavern

late 14c., from Old French caverne (12c.) "cave, vault, cellar," from Late Latin caverna "cave," from Latin cavus "hollow" (see cave (n.)). In Old English such a land feature might be called an eorðscræf.

Online Etymology Dictionary, © 2010 Douglas Harper
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cavern in Science
A large cave.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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