石 Shí/dàn/shí, surname Shi, dry measure for grain equal to ten dou 斗/ten pecks/one hundred lite... 专 zhuān, [專]/[耑], for a particular person, occasion, purpose/focused on one thing/special/expert/p... 砖 zhuān, [塼]/[甎]/[磚], variant of 甎|砖[zhuān], variant of 磚|砖[zhuān], brick/CL:塊|块[kuài]