砖
zhuān · HSK 7
brick
🧱 Sound-alike: zhuān rhymes with the start of zhuan-zhuan, the dull thunk of one brick stacked on another
砖 — stone 石 + 専 (phonetic)
砖 is a semantic-phonetic compound: the stone radical 石 signals a hard, fired material, while 専 (zhuān) supplies the sound. Originally written 甎 or 塼 with the tile 瓦 or earth 土 radical, it referred to baked clay bricks used in construction, a meaning it still carries today.