rock 'n' roll; rock 'n' roll musician; rock and roll; rock band; rock barnacle; rock bass; rock beauty; rock bit; rock bottom; rock brake; rock cake; rock candy; rock climber; rock climbing; rock concert; rock cornish; rock cornish hen; rock crab; rock cress; rock crystal; rock dove; rock drill; rock elm; rock fever; rock garden; rock geranium; rock group; rock gunnel; rock harlequin; rock hind; rock hopper; rock hyrax; rock island; rock kangaroo; rock lobster; rock maple; rock music; rock of gibraltar; rock oil; rock opera; rock outcrop; rock partridge; rock penstemon; rock pigeon; rock pink; rock plant; rock polypody; rock purslane; rock python; rock rabbit; rock rattlesnake; rock rose; rock salmon; rock salt; rock sandwort; rock sea bass; rock snake; rock spikemoss; rock springs; rock squirrel; rock star; rock sunfish; rock wallaby; rock wool; rock wren; rock-and-roll; rock-bottom; rock-inhabiting; rock-loving; rock-ribbed; rock-steady;