pebble — Rivers and Lakes pebble /ˈpebl/ noun CEFR A2 A small smooth stone found on a beach or in a river. “She threw a pebble into the river.” Related words in this scene bridgeswimwavefloatwetwaterriverlakefishboatbankstreampondfishermannetoarpaddlecurrentdeepshallowsplashflowdamwaterfallcanoefinscalereedshorerippledrift Practice this word Create worksheet