What is another word for pebble?
Pronunciation: [pˈɛbə͡l] (IPA) 
Pebbles are small, round, and smooth stones often found on beaches and river beds. Synonyms for the word "pebble" include stone, rock, cobble, boulder, gravel, nugget, and grain. Each of these words represents a different size, shape, or texture of stones. A "stone" is a generic term used for any small piece of rock, whereas a "cobble" usually refers to a rounded stone larger than a pebble. "Boulder" denotes a much larger rock, often too big to carry easily. "Gravel" is small pieces of crushed stone, and "nugget" implies a more valuable or precious stone. "Grain" can denote very small pebbles or sand.
