Focus on the pronunciation of rock
English definition of “rock”
/rɑk/ n [C/U] (STONE)
› a large mass of stone that sticks up out of the ground or the sea, or a separate piece of stone: [U] This is some of the oldest rock on the earth’s surface. [C] Waves crashed against the rocks. [C] Bees poured into the neighborhood when boys threw rocks at the hives. › slang A rock is also a diamond or other jewel.