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grind rock

American  

noun

Southern U.S.

  1. whetstone.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The 24-hour operation runs at a constant roar as machines grind rock at deafening volumes, its tunnels stretching for hundreds of kilometres beneath Poland's surface.

From Barron's • Apr. 3, 2026

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.