• 塊かたまり — lump; mass; clump
• 金塊きんかい — a gold ingot; solid lump of gold
• 石塊せっかい — a rock mass; rocky lump
• 土塊どかい — a clod of earth
• 肉塊にくかい — a lump or mass of flesh
• 団塊だんかい — a generation or group formed as a “mass”

塊 is a phono-semantic character. The left side shows the earth radical, suggesting soil or ground. The right side comes from a phonetic element connected to gathering or forming. Together they express the idea of earth pressed tightly into one solid mass.