Definition of "rock" []

• Relatively hard, naturally formed mineral or petrified matter; stone. (noun)
• A relatively small piece or fragment of such material. (noun)
• A relatively large body of such material, as a cliff or peak. (noun)
• A naturally formed aggregate of mineral matter constituting a significant part of the earth's crust. (noun)
• One that is similar to or suggestive of a mass of stone in stability, firmness, or dependability: The family has been his rock during this difficult time. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "_honey out of the rock and oil out of the flinty rock_ [137] Himself did this."
• "August 19, 2008 at 4:51 am ducks behind large rock, *stage blacks arc over top of rock* hmmm, isn’t there a plaid for the Daniel clan umph, grrrnmph, unh, oh gods……whew therrra gooo."
• "A planned weekend-long "summer music festival"—the promoters reject the label "rock concert"—has roiled a community that prefers its summer sounds to be the clinking of champagne glasses at elegant lawn parties."